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12 Key Questions to Ask Before Sending HIPAA-Compliant Marketing Emails

LuxSci HIPAA-Compliant Marketing Email

So – you’ve just been told that your email marketing program is putting your company at risk of violating HIPAA.

Ok. What now?

If you want to continue your email-based patient engagement efforts – without the risk of the financial, operational, and reputational risk that accompanies the exposure of sensitive patient data, you must implement HIPAA compliant email marketing practices.

This is comprised of two components: becoming HIPAA-compliant, setting up the required systems and procedures to ensure your PHI (PHI) and EPHI (EPHI) are protected, and your marketing objectives, who you want to reach and what to communicate.

However, you don’t have to let your marketing objectives suffer for the sake of security.

Implementing a HIPAA-compliant marketing program can actually help you achieve better marketing results.

Asking yourself these 12 questions ensures your email marketing campaigns align with your business goals and are HIPAA-compliant.

———

HIPAA-Compliant Marketing Emails

1. Do you have security controls to protect access to your email marketing system?

2. Do you have a documented procedure to guide you HIPAA-compliant email marketing?

3. Can you send encrypted emails?

4. Do you have a complete understanding of your organization’s PHI and ePHI?

5. Do you have a required training process for anyone sending HIPAA-compliant marketing emails?

6. Do you have effective protection against malware?

7. Do you have valid Business Associate Agreements (BAA) in place?

8. Why am I sending this email?

9. Is my email’s subject line standing out?

10. What is the recipient’s brand and product awareness level?

11. Have I tested my message for readability?

12. Have I sent my message to a test email account?

HIPAA-Compliant Marketing Emails

If your organization requires HIPAA-compliant email, start by using these questions to inspect your email marketing for compliance. Note that while we can’t provide legal advice, the below questions will help you identify some of the most common points of vulnerability and non-compliance.

1. Do you have security controls to protect access to your email marketing system?

Email security is an essential component of being HIPAA-compliant. As a starting point, check your internal security processes for access restrictions. This includes:

  • A robust password policy, i.e., changed frequently (e.g., 30 days), has to contain a mixture of characters, etc.
  • Multi-factor authentication (MFA), i.e., users verifying their identity in multiple ways, e.g., username/password and sent number codes (text, email, key fob, etc.), biometrics, etc.
  • Role-based access controls, i.e., granting access to individuals based on the responsibilities of their job role.
  • Zero Trust Architecture (ZTA), i.e., “never trust, always verify” – where users are required to reconfirm their identity on a case-by-case basis, as opposed to once when logging on, which mitigates session hijacking and similar threats.

2. Do you have a documented procedure to guide you HIPAA-compliant email marketing?

“Winging it” simply doesn’t cut it when it comes to HIPAA-compliant email marketing; you must develop a comprehensive documented process detailing how you intend to safeguard PHI throughout your email marketing campaigns.

This should include:

  • Specifying the HIPAA-compliant email delivery service you’ll use to execute your marketing campaigns
  • The processes and controls you’ll use to encrypt data  for ePHI at rest and in transit
  • The access and authentication controls you have in place
  • How you’ll implement data minimization: only using the minimum necessary PHI in communications – and not including sensitive PHI unless it’s essential.
  • How you’ll securely dispose of data: Implement a process for securely deleting emails containing ePHI once they’re no longer needed, to comply with retention policies.
  • Staff training: educating employees involved in email marketing on how to securely handle PHI and other HIPAA requirements.
  • Incident response plan, i.e., an additional documented plan for how you’ll respond to data breaches and other cyber attacks; this also includes notifying any affected parties as mandated by HIPAA.

If you’re starting from scratch, the information contained in the answers to the questions in this article provides a useful starting point for creating your first procedure.

3. Can you send encrypted emails?

If you are sending highly sensitive data or PHI in your emails, be aware that HIPAA requires the data to be encrypted a rest, i.e., the storage medium where it resides, and in transit, when being sent to recipients.

To the surprise of many healthcare organizations, most major email marketing providers, such as Mailchimp and Constant Contact are unable to provide encryption for data in transit and only protect data in their systems. To avoid falling foul of HIPAA regulations, ensure that the email delivery platform you use to transmit messages containing PHI offers end-to-end encryption.

4. Do you have a complete understanding of your organization’s PHI and ePHI?

Much of the time, when we, as well as healthcare providers, talk about PHI, we’re actually referring to electronic protected health information (EPHI). While PHI is a catch-all term to account for all sensitive health information, in truth, in the digital age, the vast majority is stored electronically in data centers – and the patient data handled is EPHI.

You can discover “PHI” and “ePHI” within the context of your organization’s context by identifying and categorizing the PHI and ePHI typically handled in your business. It’s an absolutely crucial tenet of data protection that you simply can’t protect what you’re not aware of.

Comprehensive PHI categorization will help your staff navigate HIPAA-compliant email requirements.

5. Do you have a required training process in place for anyone sending HIPAA-compliant marketing emails?

Your HIPAA compliance program, as with your company’s overall cybersecurity posture, is only as strong as your weakest link. In light of this, it’s essential to educate the staff within your company who are involved in your healthcare engagement campaigns on the secure use of ePHI and HIPAA-compliant marketing practices.

Additionally, this needs to be reflected in your onboarding process, so new hires are made familiar with HIPAA regulations, should their role require it.

6. Do you have effective protection against malware?

In the unlikely event you need any further encouragement to revisit your company’s anti-malware (viruses, ransomware, Trojans, etc.) measures, there are always HIPAA compliance requirements! 

To better protect your sensitive customer data against a slew of increasingly sophisticated cyber threats, start with these three key considerations:

  1. Do you have anti-malware protection running on all of your organization’s devices? Additionally, does this extend to your employee’s personal devices on which they handle PHI?
  2. How frequently do you update your anti-malware solution?
  3. Does your email marketing provider have sufficient protection malware mitigation measures in place, as per HIPAA requirements?

7. Do you have valid Business Associate Agreements (BAA) in place?

It’s normal to outsource activities like email marketing to a third party, but for the service they provide to be HIPAA-compliant, you must have a business associate agreement (BAA) in place.

A BAA documents how two organizations will share PHI and under what circumstances. A BAA also details the legal responsibilities of each party in the event of a serious issue. With a BAA being a core component of HIPAA compliance, failure to have one in place with your email service provider is an immediate HIPAA violation – and one that can result in serious consequences for a healthcare company.

Getting Better Results from HIPAA-Compliant Email Marketing

Now that you’ve confirmed your systems are HIPAA-compliant, let’s move on to making sure your email marketing strategy aligns with your overall business objectives.

In pursuit of this, the following questions serve as a handy “monthly review” for refining the effectiveness of your email-based patient outreach efforts .

8. Why am I sending this email?

First and foremost, for the best results, each email you send should have a single, clearly defined purpose.

I know what you’re thinking – “my customers and patients are smart, they can handle multiple points in a single message.”  And while that’s true, at whatever point your email reaches a recipient, they’re already juggling several different priorities at once. While they’re capable of juggling multiple points in a message – they’re unlikely to want to; when it comes to email marketing, a single goal is the best way to go.

Similarly, it’s important to remember that your email is one of dozens –  or hundreds – received by your patient that day. So, if your message is long and overly complicated, the reader will likely skip over or delete it.

9. Is my email’s subject line standing out?

Following on the above point, is your email subject line impactful enough to stand out amidst the pile of messages that will land in the patient’s inbox that day? The email subject line is the most important part of your email because it’s responsible for persuading the reader to open your message.

Despite this, many marketers still use terrible, ineffective subject lines and wonder why their emails are failing to produce results!

For the best results, write up three to ten subject lines for your next email, step away for 5-10 minutes, and then choose the headline you determine as best.

Consider these examples to check your understanding:

Ineffective Email Subject Lines

  1. Blank (no subject): writing nothing in the subject line
  2. Clinic Newsletter (tell them more, e.g., the subject or theme for the month)
  3. Overusing exclamation marks!!!

Effective Email Subject Lines (examples based on a dental practice)

  1. BRAND-NEW Dental Product Released Today
  2. How to Cut Down on Your Health Insurance Paperwork
  3. [Case Study] How We Helped 3 Ex-Smokers Get White Teeth

10. What is the recipient’s brand and product awareness level?

Whether promoting medical devices, new digital solutions technology, or any healthcare product or service, understanding the prospect’s awareness level is essential.

If your email is designed to introduce a brand-new product, stick to high-level features and benefits while avoiding technical jargon and granular product details. Conversely, if you’re writing an email to experienced, highly knowledgeable readers, going into greater depth makes sense.

Advanced list management and segmentation tools, as offered by Luxsci Secure Marketing, are key for ensuring the communications you send match the reader’s awareness level.

11. Have I tested my message for readability?

Do you know one of the reasons that Hemingway was popular? He   was skilled at writing short phrases and phrases. Consequently, his writing was easy to understand and appealed to a wide variety of people. When in doubt, keep your writing short and free of jargon, abbreviations and “insider” terms.

When you’re deeply involved in the details of your business, it’s so easy to overlook just how much specialized jargon and language you frequently use. However, if you want your communications to engage with patients and customers, they need to be as accessible as possible.

Fortunately, there are simple solutions to this, with tools like the Text Readability Calculator that are designed to quickly enhance the readability of your emails.

12. Have I sent my message to a test email account?

Finally, if you’ve followed all of the above advice, you’re almost ready to hit SEND…there’s just one more thing you need to check.

Determine how your email will look to recipients, including its clarity, and readability by simply sending a test email to one of your own email accounts once it is received.

In particular, pay attention to how the subject line looks and test all the links in the email to ensure they take the reader through to the intended destination, such as a product or service page. A broken link will only frustrate the recipient – who was interested enough to click through, no less – and lower your conversion rate.

Better still, send the test email to a colleague somebody and ask for their opinion about the quality of the message and whether it creates the desired impression.

Demystifying HIPAA-Compliant Email Marketing

As the most experienced HIPAA-compliant email provider, LuxSci specializes in providing secure and HIPAA-compliant solutions for companies aiming to send hundreds of thousands – or millions – of emails. Our hypersegmentation tools allow you to precisely target an unlimited number of patient sub-populations to maximize the efficacy of your messaging.

Are you interested in discovering how LuxSci’s secure email marketing platform will streamline your healthcare engagement efforts?

Contact us to learn more about our products and pricing.

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HIPAA Security Rule Update

The HIPAA Security Rule Missed Its May Deadline — Here’s What We Know

The proposed HIPAA Security Rule update has become one of the most closely watched healthcare compliance developments in recent years. Designed to strengthen cybersecurity protections for electronic protected health information (ePHI), the proposal could significantly reshape how healthcare organizations approach risk management, ePHI encryption, and mandatory email encryption requirements.

A final rule was expected as early as May 2026. However, that deadline has now passed without publication from the U.S. Department of Health and Human Services (HHS) Office for Civil Rights (OCR).

So, what happens next—and what should healthcare IT directors, CISOs, and compliance officers do now?

Where Things Stand Today

The HIPAA Security Rule Notice of Proposed Rulemaking (NPRM) was published on January 6, 2025, with the goal of strengthening cybersecurity protections for ePHI in response to escalating ransomware attacks, healthcare breaches, and growing concerns about cyber resilience across the healthcare sector.

The proposal generated thousands of public comments from healthcare providers, payers, business associates, technology vendors, and industry groups. OCR has spent much of the past year reviewing this feedback and evaluating the operational and financial impact of the proposed changes.

Although the Spring Unified Regulatory Agenda identified May 2026 as a target date for a final rule, that milestone came and went without publication. As of June 2026, the proposed HIPAA Security Rule update remains under review.

While some organizations may be tempted to take a wait-and-see approach, the missed deadline should not be interpreted as a signal that the initiative has stalled. If anything, the proposal offers valuable insight into the future direction of healthcare cybersecurity regulation.

The Growing Focus on Mandatory Email Encryption

One of the most discussed aspects of the proposed HIPAA Security Rule update is encryption.

Under the current HIPAA Security Rule, encryption is generally classified as an “addressable” implementation specification. Organizations can choose alternative safeguards if they document and justify their decisions through a risk analysis process.

The proposed changes would significantly reduce that flexibility. Instead, many security safeguards, including encryption controls, would become more prescriptive and difficult to avoid.

While the final language has not yet been released, healthcare organizations should pay close attention to the proposal’s clear message: protecting ePHI through encryption is increasingly viewed as a baseline cybersecurity requirement.

This is particularly important for email communications.

Email remains one of the most widely used communication channels in healthcare, supporting everything from patient engagement and care coordination to billing, scheduling, and marketing communications. As regulators continue to focus on reducing data breach risks, mandatory email encryption is emerging as a likely area of increased scrutiny.

What Healthcare Organizations Should Do Now

The current delay creates an opportunity, not a reason to postpone action.

Healthcare organizations can begin preparing for likely requirements today by evaluating the security controls highlighted throughout the proposed rule.

Key areas to review include:

  • Encryption of ePHI across systems and communications channels
  • Comprehensive asset inventories and ePHI data mapping
  • Enhanced risk analysis and risk management processes
  • Multifactor authentication (MFA)
  • Vulnerability scanning and penetration testing
  • Incident response planning and testing
  • Backup and recovery procedures
  • Email security and secure email encryption practices

Organizations that proactively strengthen these areas now will be better prepared regardless of the final rule’s implementation timeline.

Why Secure Email Encryption Should Be a Priority

For many healthcare organizations, email remains one of the largest compliance and security risks.

Human error, misdirected messages, phishing attacks, and inconsistent encryption practices continue to contribute to breaches involving protected health information. As a result, secure email encryption is increasingly becoming a foundational component of healthcare cybersecurity strategies.

Organizations that rely on manual encryption processes or employee judgment alone may find it difficult to meet evolving regulatory expectations.

Instead, healthcare organizations should look for solutions that automate encryption decisions, reduce user error, and provide flexibility based on the sensitivity of the communication.

At LuxSci, we have long believed that security and usability must work together. We are 100% focused on secure healthcare communications, helping healthcare providers, payers, and suppliers protect sensitive data while improving patient and customer engagement. Our proven secure email solutions, used by leading companies including Athenahealth, 1-800 Contacts, and Hinge Health, help organizations protect ePHI with automated encryption capabilities that support both compliance and operational efficiency. Our unique SecureLine encryption technology enables organizations to apply the appropriate level of protection while maintaining a seamless experience for patients, customers, and staff.

For organizations already using Microsoft 365 or Google Workspace, LuxSci Secure Email Gateway can add HIPAA-compliant email security and encryption without requiring users to change their existing workflows. This approach helps reduce risk, while preserving productivity and user adoption.

The Bottom Line

The HIPAA Security Rule final rule may have missed its anticipated May deadline, but the cybersecurity challenges driving the proposal remain very real.

The OCR is still expected to make the rule change, which could require mandatory encryption of ePHI by early 2027.

The time to prepare is now!

Healthcare organizations should view the proposed HIPAA Security Rule update as an advance warning of where regulatory expectations are heading. Stronger cybersecurity controls, enhanced risk management, ePHI encryption, and mandatory email encryption requirements are all likely to remain central themes in future compliance efforts.

The organizations that begin preparing now will not only be better positioned for future regulatory changes, but will also strengthen their ability to protect patient data, reduce risk, and build trust in an increasingly challenging threat landscape.

At LuxSci, we’re proud to support the healthcare industry’s ongoing digital transformation through secure healthcare communications. Our HIPAA-compliant solutions for secure email, email marketing, and forms empower organizations to safely use and protect PHI, while delivering better patient experiences and outcomes.

Ready to strengthen your healthcare cybersecurity strategy?

Learn more about LuxSci and our complete suite of HIPAA compliant email and marketing solutions, or schedule a consultation with one of our healthcare communication experts today.

Contact us today!

LuxSci G2

LuxSci Awarded 20 Badges in the G2 Summer 2026 Reports

We’re excited to announce that LuxSci has again been recognized by G2 with 20 badges in its just-released Summer 2026 Reports, highlighting our continued leadership in secure healthcare communications and HIPAA compliant email solutions.

The new LuxSci G2 recognitions span several categories, including:

  • Best Estimated ROI
  • Best Support
  • High Performer
  • Leader

These latest LuxSci G2 awards reflect what matters most to our customers: delivering secure, HIPAA compliant healthcare communications backed by responsive support and measurable business results.

As one of the most trusted providers of HIPAA compliant email, marketing, and forms solutions, we’re proud to see our commitment recognized across multiple product categories and customer satisfaction metrics.

Recognition Built on Customer Experience

LuxSci’s G2 rankings are based on verified customer feedback and real-world user experiences, making these badges especially meaningful to our team.

This year’s Summer Reports recognized LuxSci for consistently delivering value to healthcare organizations looking to securely engage patients and customers while maintaining compliance with HIPAA requirements.

Among the highlights, the LuxSci G2 recognition includes:

  • Best Estimated ROI, reflecting the measurable value customers achieve through secure healthcare communications and personalization
  • Best Support, reinforcing LuxSci’s long-standing reputation for responsive, knowledgeable customer service
  • High Performer badges across multiple categories for customer satisfaction and product performance
  • Leader recognition for delivering secure, scalable communications solutions trusted by healthcare organizations

At LuxSci, we believe secure communications should also drive better engagement, stronger outcomes and operational efficiency. These recognitions reinforce our focus on helping healthcare providers, payers and suppliers personalize communications while protecting sensitive patient data.

Supporting the Future of Personalized Healthcare Engagement

LuxSci’s secure healthcare communication and patient engagement solutions empower organizations to safely communicate with patients and customers through:

  • HIPAA-compliant high volume email
  • Secure email marketing
  • Secure forms and data collection
  • Flexible encryption with SecureLine technology

Our solutions are designed to help healthcare organizations improve engagement, streamline workflows and personalize the healthcare journey while maintaining the highest standards of security and compliance.

These latest LuxSci G2 recognitions also build on LuxSci’s broader reputation for security, performance and customer success. Security and trust remain foundational to everything we do, alongside our commitment to delivering smart, responsive support for our customers.

Thank You to Our Customers

We’re grateful to our customers for their continued trust, collaboration and feedback. Their reviews and insights help shape our products and drive ongoing innovation across the LuxSci product set.

To learn more about LuxSci’s secure healthcare communications solutions, contact our team to schedule a secure email assessment or demo.

Connect with us today!

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Email Encryption

Is OCR Already Enforcing Email Encryption Under the New HIPAA Security Rule?

Healthcare organizations waiting for the final HIPAA Security Rule updates before improving email encryption and security may already be behind.

While the proposed changes to the HIPAA Security Rule are expected to be finalized in May, the direction from the U.S. Department of Health and Human Services Office for Civil Rights (OCR) is becoming increasingly clear. Across investigations, settlements, and enforcement actions, OCR continues emphasizing stronger technical safeguards, encryption, documented security programs, multi-factor authentication (MFA), risk analysis, and proactive cybersecurity operations.

For healthcare organizations, one area stands directly in the middle of all of these priorities: email.

Email remains a primary communication channel in healthcare — and one of the industry’s largest security vulnerabilities. From unauthorized PHI exposure to phishing attacks and ransomware delivery to account compromise, email continues to be at the center of healthcare cybersecurity incidents.

So, are the proposed HIPAA Security Rule changes hypothetical future guidance or a preview of OCR’s future enforcement expectations?

For healthcare email security, the implications are significant.

Email = Healthcare Cybersecurity Risk

Healthcare organizations rely on email for critical communications and healthcare workflows, including:

  • Patient communications
  • Care coordination
  • Claims and billing notifications
  • Marketing and engagement
  • Internal collaboration
  • Third-party vendor communications
  • Delivery of sensitive PHI

At the same time, attackers continue targeting email systems because they remain one of the easiest entry points into healthcare environments.

Insecure email workflows create unnecessary exposure of protected health information. Phishing campaigns are becoming more sophisticated. Credential theft attacks are bypassing traditional MFA methods. And business email compromise (BEC) attacks continue rising.

Recent OCR enforcement actions increasingly reflect these realities.

Organizations are being evaluated not simply on whether a breach occurred, but whether they implemented reasonable safeguards beforehand, including encryption, authentication controls, monitoring, access management, and documented risk mitigation processes.

For email systems specifically, that means healthcare organizations should expect increased scrutiny around:

  • Email encryption enforcement
  • MFA deployment
  • Audit logging and retention
  • Conditional access policies
  • Vendor security controls
  • Secure email delivery best practices
  • Segmentation and infrastructure isolation
  • Ongoing patch and vulnerability management

In many ways, email infrastructure is becoming a visible test of an organization’s overall cybersecurity posture.

Email Encryption Is Moving From Addressable to Required

Historically, healthcare organizations often interpreted HIPAA email encryption requirements with flexibility because encryption was technically categorized as an “addressable” safeguard under the Security Rule. But, OCR enforcement and broader cybersecurity realities are changing that interpretation rapidly.

Today, failing to encrypt sensitive healthcare communications increasingly creates both security and regulatory risk. The proposed Security Rule updates place even greater emphasis on encryption and technical safeguards. At the same time, OCR investigations continue examining whether organizations properly protected PHI in transit and at rest.

For healthcare email specifically, this creates several growing expectations:

  • Email encryption should be automated wherever possible
  • Human error should not determine whether PHI is protected
  • Organizations should maintain documented encryption policies
  • Secure delivery methods should adapt dynamically to recipient capabilities
  • Audit trails should demonstrate how messages were secured

At LuxSci, we have long believed that encryption should operate as a strategic layer of healthcare communications infrastructure, not as a manual user decision.

Our SecureLine email encryption technology automatically applies appropriate encryption methods based on organizational policies and delivery requirements, helping reduce the risks associated with human error while maintaining usability, deliverability and compliance. As enforcement expectations rise, this type of automated security enforcement is becoming increasingly important.

Traditional MFA May No Longer Be Enough

Another major shift emerging from both OCR enforcement trends and the proposed rule updates is the growing importance of stronger authentication models.

Healthcare organizations have historically viewed MFA deployment as sufficient protection. But attackers have adapted quickly.

MFA bypass attacks, token theft, session hijacking, and consent phishing campaigns are increasingly targeting healthcare users. As a result, regulators and cybersecurity experts are placing greater emphasis on phishing-resistant authentication approaches and contextual access controls.

For email environments, organizations should increasingly evaluate:

  • Whether MFA methods are resistant to phishing attacks
  • Conditional access policies based on device, location, and behavior
  • Account monitoring and anomaly detection
  • Administrative access protections
  • Session management controls
  • Logging and authentication auditing

The broader message is clear: healthcare organizations need authentication strategies designed for today’s threat landscape, not yesterday’s compliance checklist.

OCR Wants Proof, Not Just Policies

One of the clearest trends emerging from recent OCR activity is the increasing importance of documentation and operational evidence. Healthcare organizations must increasingly demonstrate not only that safeguards exist, but that they are consistently enforced, monitored, tested, and maintained over time.

For email systems, organizations should be prepared to demonstrate:

  • Email encryption policies
  • MFA enforcement records
  • Audit logs and message tracking
  • Vendor security documentation
  • Risk assessments involving email infrastructure
  • Patch management procedures
  • Employee security awareness training
  • Incident response procedures for email-based threats

This represents a broader shift in healthcare cybersecurity expectations.

The question is no longer: “Do you have email security controls?”

The question is increasingly: “Can you prove they are operationally effective?”

Healthcare Organizations Need a New Email Security Strategy

The healthcare industry is entering a new phase of cybersecurity enforcement.

OCR’s direction is becoming increasingly clear: organizations are expected to proactively secure systems handling PHI using modern, documented, and continuously maintained safeguards. For email security specifically, that means organizations should stop treating encryption, MFA, and secure communications as optional compliance requirements. Instead, they should view secure email infrastructure as a strategic component of enterprise cybersecurity and patient trust.

At LuxSci, we help healthcare organizations modernize secure communications with HIPAA compliant email infrastructure designed specifically for healthcare environments, including flexible encryption, secure delivery, auditability, high deliverability, access controls, and dedicated infrastructure options.

The proposed HIPAA Security Rule updates may not yet be final. But, OCR is already signaling where healthcare cybersecurity enforcement is headed next. For organizations relying on email to communicate with patients, members, customers, and partners, the time to examine your secure email infrastructure is now.

Connect with our experts to learn more using the form at the top of this page!

LuxSci HIPAA Compliant Email for Mid-Sized Healthcare Organizations

LuxSci Launches Enterprise-Grade HIPAA Compliant Email Security for Mid-Sized Healthcare Organizations

New right-sized offering brings advanced encryption, easy API integration, and HITRUST-certified compliance to the most underserved segment in healthcare email — with pricing starting at $99/month

CAMBRIDGE, MA — May 5, 2026 — LuxSci, a leading provider of HIPAA compliant secure healthcare communications, today announced the launch of LuxSci Secure High Volume Email for mid-sized healthcare organizations, the industry’s trusted HIPPA-compliant email solution now packaged and priced for mid-size healthcare organizations. Regional health systems, health plans, specialty group practices, urgent care networks, and multi-site regional providers can now access LuxSci’s enterprise-grade email security and encryption infrastructure at published, volume-based pricing — with no custom quote required.

LuxSci Secure High Volume Email for mid-sized healthcare organizations delivers the same HITRUST CSF r2-certified email security and flexible encryption capabilities that power communications for some of the largest healthcare organizations in the industry, including Athenahealth, 1-800 Contacts, Hinge Health and Eurofins. The new LuxSci mid-sized offer is tiered and priced for organizations with email sending volumes of between 300 and 99,000 emails per month.

LuxSci Secure High Volume Email is built on the company’s proprietary SecureLine™ encryption technology, which automatically selects the optimal email encryption method — TLS, secure portal fallback, PGP, or S/MIME — on a per-recipient basis at the time of delivery, with no action required from senders or recipients. This intelligent, adaptive encryption method goes significantly beyond TLS-only or portal fallback models offered by basic platforms, giving mid-market healthcare organizations the flexibility and cybersecurity depth they need as HIPAA regulations tighten and email threats continue to get more sophisticated.

Key capabilities include:

  • Automatic email encryption via SecureLine™ — encrypt every email and its content, including Protected Health Information (PHI), with per-recipient adaptive encryption across TLS, portal fallback, PGP, and S/MIME.
  • Advanced REST API with webhooks for dataflows into your systems — supports unlimited messages/hour with failover, queuing, plus webhooks can push email engagement data back to EHRs, CRMs, RCM and customer data platforms.
  • Comprehensive audit logging and reporting — message-level tracking, delivery status, engagement reporting, and downloadable reports for compliance officers.
  • HITRUST CSF r2 certification, BAA, GDPR-compliant, and US-EU Privacy Framework agreement all included.
  • Microsoft 365 and Google Workspace overlay — use LuxSci’s Secure Email Gateway add-on to integrate directly with existing M365 or Google Workspace environments, adding HIPAA-compliant encryption without migration or user retraining.
  • HIPAA-compliant patient engagement — secure outbound email campaigns with PHI-powered hyper-segmentation, automated workflows, and personalized emails for marketing campaigns, proactive patient communications, appointment reminders, care gap outreach, new plan enrollments, healthcare education, and more — with LuxSci Secure Marketing add-on.

New Published LuxSci Pricing

LuxSci Secure High Volume Emai for mid-sized healthcare organizations features published pricing based on monthly sending volume:

Monthly Send VolumeMonthly Price
300 to 9,999 emails/month $99/month
10,000 – 29,999 emails/month $199/month
30,000 – 49,999 emails/month $299/month
50,000 – 99,999 emails/month $399/month
100,000+ emails/month Custom

“Mid-size healthcare organizations have been underserved for too long, forced to choose between inadequate email security tools that weren’t built for healthcare and HIPAA compliance and enterprise level solutions that felt too big or too complex,” said Mark Leanord, CEO of LuxSci. “Our new secure email packaging for mid-sized organizations changes that. We’re making the same encryption depth, ease of integration into EHRs, CRMs and other systems, and compliance rigor that powers our largest customers accessible for mid-sized organizations to easily evaluate and buy.”

Timing and Market Context

The launch comes at a critical moment for mid-size healthcare organizations. The HHS HIPAA Security Rule overhaul, expected to finalize in mid-2026, is anticipated to mandate email encryption as a required safeguard, elevating email security from addressable best practice to a regulatory requirement for thousands of organizations that have not yet upgraded their email security and compliance posture. LuxSci secure email is designed to meet these requirements, backed by HITRUST CSF r2 certification and the company’s 20-year track record in secure healthcare communications.

Availability

LuxSci Secure Email for mid-sized healthcare organizations is available immediately. Pricing and product details are published here.

Users can contact LuxSci to set up a call or DEMO.

About LuxSci

LuxSci is a leading provider of secure healthcare communications solutions for the healthcare industry. The company offers secure email, marketing, forms and hosting, delivering HIPAA‑compliant communication solutions that enable organizations to safely manage and transmit sensitive data, including protected health information (PHI). Founded in 1999 and recently merged with digital care and telehealth provider Ovia Health, LuxSci serves more than 2,000 customers across healthcare verticals, including providers, payers, suppliers, and healthcare retail, home care providers, and healthcare systems, as well as organizations operating in other highly regulated industries. LuxSci is HITRUST‑certified with current customers including Athenahealth, 1800 Contacts, Lucerna Health, Eurofins, and Rotech Healthcare, among others.

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Media Contact:
Pete Wermter, CMO

pwermter@luxsci.com

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The best HIPAA compliant email providers protect messages in transit and at rest, verify identity with layered controls, and record activity in a way auditors can trust while connecting cleanly with clinical systems. When selecting among the best HIPAA compliant email providers, look for default encryption, reliable authentication, clear logging, and contracts that match HIPAA Privacy and Security Rule expectations so staff can communicate without extra steps.

Why the Best HIPAA Compliant Email Providers Matter in Practice

Email drives everyday healthcare tasks from scheduling and follow ups to sharing discharge details. A service earns its place when protection is automatic and invisible during busy moments. Transport Layer Security should be the baseline for server to server delivery, with message level encryption available when a thread leaves trusted paths so only intended recipients can read the content. Identity deserves equal attention through multi factor sign in, phishing resistant authenticators for sensitive roles, and session rules that make sense on shared workstations. Domain protections like SPF DKIM and DMARC reduce spoofing so patients and partner clinics can trust sender identity, which cuts confusion and keeps conversations in the right hands.

Encryption and Role-Based Access

Strong protection should never slow care. Default rules that apply encryption without user action prevent lapses, while admin policies decide when to escalate from transport protection to content encryption based on recipient or message context. Role based access narrows who can open attachments that carry imaging or lab data, and time bound sessions reduce risk on nursing stations where several people might use the same terminal across a shift. When a platform can prove these controls operate as configured, it stands closer to the standard set by the best HIPAA compliant email providers without demanding constant attention from clinical teams.

Contract Assurances Without Surprises

Patient information requires clear agreements that spell out responsibilities before a single message is sent. A Business Associate Agreement should describe data handling, incident reporting timelines, and how information returns or is deleted when the relationship ends. Contract language needs to align with administrative and technical safeguards referenced in 45 CFR 164.308 and 45 CFR 164.312 so there is no gap between what the law expects and what the vendor delivers. Independent examinations such as SOC 2 Type II or HITRUST provide added assurance that controls operate consistently, while incident procedures and appropriate insurance show the vendor has prepared for difficult days. These pieces lower uncertainty and bring a provider closer to the standard you expect from the best HIPAA compliant email providers.

Integrations That Put Messages Into the Chart

Security works best when it lands in the clinical record without extra clicks. Direct links to electronic health records allow messages and attachments to post into the chart so staff are not copying and pasting under time pressure. Open APIs help route patient replies and flags to the right queue so action happens quickly, and single sign on keeps access simple as clinicians move from room to room. Mobile applications that retain encryption and authentication let providers answer urgent questions away from a desk, which shortens response time while keeping protections intact. A platform that quietly fits this pattern saves minutes every hour and reduces workarounds that create risk, a hallmark shared by the best HIPAA compliant email providers.

Evidence, Logging, and Retention at Scale

Privacy officers need clear visibility when questions arise. Immutable logs that capture access, message views, downloads, and policy changes allow teams to reconstruct events without guesswork. Searchable timelines answer who saw what and when, while retention settings that match record policy keep storage predictable and ready for discovery or legal holds. Alerts that point to unusual sign ins or large exports give early notice without overwhelming teams with noise. This combination turns security features into verifiable history that stands up during reviews, which is where many platforms falter and where mature services establish trust.

How the Best HIPAA Compliant Email Providers Support Audits

Audits move faster when evidence is easy to find. Administrators should be able to export logs for a defined window, filter by user or mailbox, and show exactly how encryption and access rules applied to a thread. Legal teams need clean exports that preserve headers and message bodies without altering content, while compliance staff look for consistent timestamps and clear event labels. When a platform delivers this clarity on demand, investigations remain focused on facts rather than tool limitations, and leadership gains confidence that controls are doing the work they were designed to do.

A Practical Way to Compare Options

Run a focused pilot inside one service line and track the steps that matter. Measure time to send a protected message, the rate at which patients open secure threads, and the ease with which staff can file conversations into the record. Note how many clicks it takes to apply content encryption and how often users need to call for help. Ask for references from similar healthcare organizations and listen for detailed stories about migration quality and support response during the first month. Review pricing beyond a seat line by including storage tiers, archive export charges, and support commitments over a multi year term so totals stay predictable. A platform that performs across these measures will stand out among the best HIPAA compliant email providers without any need to name vendors, and it will do so by making privacy steady and communication smooth rather than by promising features that never show up in daily work.

secure communication platform

HIPAA Compliance For Email

Ensuring HIPAA compliance for email is crucial for healthcare organizations and their business associates when handling Protected Health Information (PHI). HIPAA regulations require strict safeguards, including access controls, audit logs, integrity protections, and transmission security, to prevent unauthorized access and breaches. Encryption plays a key role in securing PHI during email exchanges, and organizations must establish comprehensive email policies aligned with the HIPAA Privacy Rule. Additionally, some state laws may impose stricter requirements, such as obtaining explicit patient consent before using email for PHI. Understanding these regulations is essential for maintaining compliance, protecting patient data, and avoiding costly penalties.

The Health Insurance Portability and Accountability Act (HIPAA) is a complicated law that sets the standards for collecting, transmitting, and storing protected health information (PHI). When information is stored or exchanged electronically, the HIPAA Security and Privacy Rules require covered entities to safeguard its integrity and confidentiality. One of the most common ways that PHI is shared electronically is via email. Understanding how HIPAA email rules apply is essential to meet HIPAA requirements and protect sensitive data.

The HIPAA Email Security Rule

It’s important to note that HIPAA does not require the use of any specific technology or vendor to meet its requirements. Generally speaking, the Security Rule requirements for email fall into four categories:

  1. Organizational requirements state the specific functions a covered entity must perform, including implementing policies and procedures and obligations concerning business associate contracts.
  2. Administrative requirements relate to employee training, professional development, and management of PHI.
  3. Physical safeguards encompass the security of computer systems, servers, and networks, access to the facility and workstations, data backup and storage, and the destruction of obsolete data.
  4. Technical safeguards ensure the security of email data transmitted over an open electronic network and the storage of that data.

Below, we discuss some of the main requirements that apply to email and the steps you need to take to secure email accounts that transmit and store PHI.

hands on keyboard checking off tasks

HIPAA Compliance Email Rules

While email encryption gets most of the spotlight during discussions on HIPAA compliant email security, HIPAA regulations for email cover a range of behaviors, controls, and services that work together to address eight key areas.

1. AccessAccess controls help safeguard access to your email accounts and messages. Implementing access controls is essential to keep out unauthorized users and secure your data. Some key steps to take include:

  • Using strong passwords that cannot be easily guessed or memorized.
  • Creating different passwords for different sites and applications.
  • Using two-factor authentication.
  • Securing connections to your email service provider using TLS and a VPN.
  • Blocking unencrypted connections.
  • Being prepared with software that remotely wipes sensitive email off your mobile device when it is stolen or misplaced.
  • Logging off from your system when it is not in use and when employees are away from workstations.
  • Emphasizing opt-out email encryption to minimize breaches resulting from human error.

2. Encryption: Email is inherently insecure and at risk of being read, stolen, eavesdropped on, modified, and forged (repudiated). Covered entities should go beyond the technical safeguards of the HIPAA Security Rule and take steps beyond what is required to futureproof their communications. Some email encryption features to adopt include the following:

  • The ability to send secure messages to anyone with any email address.
  • The ability to receive secure messages from anyone.
  • Implementing measures to prevent the insecure transmission of sensitive data via email.
  • Exploring message retraction features to retrieve email messages sent to the wrong address.
  • Avoiding opt-in encryption to satisfy HIPAA Omnibus Rule.

3. Backups and ArchivalHIPAA email retention rules require copies of messages containing PHI to be retained for at least six years. To address these requirements, organizations must consider the following:

  • How are email folders backed up?
  • Are there at least two different backups at two different geographical locations? The processes updating these backups should be independent of each other as a measure against backup system failures.
  • Have you maintained separate, permanent, and searchable archives? While the emails should be tamper-proof, with no way to delete or edit them, they should be easily retrievable to facilitate discovery, comply with audit requests, and support business-critical scenarios.

4. Defense: Cyber threats against healthcare organizations are continually increasing. Some may be surprised to learn that HIPAA secure email requirements mandate that organizations take steps to defend against possible attackers. To defend against malicious messages, consider implementing the following technologies:

  • Server-side inbound email malware and anti-virus scanning to detect phishing and malicious links
  • Showing the sender’s email address by default on received messages
  • Email filtering software to detect fraudulent messages and ensure it uses SPF, DKIM, and DMARC information to classify messages
  • Scanning outbound email
  • Scanning workstations for malware and virus
  • Using plain text previews of your messages

5. Authorization: A crucial aspect of HIPAA secure email requirements is ensuring that bad actors cannot impersonate your company or employees. Configuring your domains with SPF and DKIM is essential to verify your identity as an authorized sender of mail from your domains. Also, ensure that users cannot send messages through your email servers without authentication and encryption.

6. Reporting: Setting accountability standards for email security is essential to establishing and improving your HIPAA compliance posture. Some important steps to take include:

  • Creating login audit trails.
  • Receiving login failure and success alerts.
  • Auto-blocking known attackers.
  • Maintaining a log of all sent messages.

7. Reviews and Policies: Humans are the greatest vulnerability to any security and compliance plan. Create policies and procedures that focus on plugging vulnerabilities and preventing human errors. Some ways to reduce risk include:

  • Inviting independent third parties to review your email policies and user settings. Fresh, unbiased eyes can weed out issues quickly.
  • Disallowing the use of public Wi-Fi for devices that connect to your sensitive email.
  • Creating email policies prohibiting users from clicking on links or opening attachments that are not expected or requested.

8. Vendor Management: Most people do not manage their email in-house. Properly vetting and researching whoever will be responsible for your email services is essential. Perform a yearly review of your email security and stay on top of emerging cybersecurity threats to take proactive action when necessary for sustained HIPAA compliance.

LuxSci’s secure email solutions were designed to help organizations tackle complicated HIPAA email rules. Contact us today to learn more how we can help you secure sensitive data.

Documenting HIPAA Compliance For Email

HIPAA compliant email requires documented proof that privacy and security protocols are being followed. HIPAA email systems must include audit trails, policy records, and incident response documentation that demonstrate appropriate safeguards are in place. Healthcare organizations benefit from clear documentation practices that satisfy regulatory inspectors while supporting daily operations and staff training activities.

Email Policy Documentation and Implementation Records

Healthcare organizations must develop written policies that govern HIPAA email usage according to Privacy Rule and Security Rule standards. Email policies should specify encryption requirements, staff responsibilities for handling patient information, and procedures for responding to security incidents. Policy documents must include implementation dates, responsible staff members, and update procedures when regulations change or organizational needs evolve.

Training records provide evidence that employees understand their HIPAA email obligations and can properly implement security procedures. Documentation should capture completion dates, training topics, assessment scores, and remedial training when staff members fail initial evaluations. Organizations that cannot produce training records struggle to prove employees received instruction appropriate to their job functions and access to patient information.

Business Associate Agreement files cover relationships with email service providers and other vendors handling protected health information. Contract documentation should include security specifications, incident reporting procedures, and audit rights that allow healthcare organizations to verify vendor performance. Without proper agreements, healthcare organizations expose themselves to liability when vendors mishandle patient information.

Risk assessment documentation identifies vulnerabilities in HIPAA email systems and describes corrective measures implemented to address identified problems. Assessment records should include evaluation methods, discovered issues, remediation plans, and verification that fixes have been properly implemented. Many organizations conduct risk assessments but fail to document their findings, making it difficult to track improvements over time.

Audit Trail Management and Log Analysis

HIPAA compliance for email depends on audit logs that track user activities, system access, and message handling throughout email platforms. Audit systems should capture login events, message transmission records, administrative changes, and security alerts that might indicate potential violations. Log protection prevents tampering while ensuring data remains accessible for regulatory review periods.

Monitoring systems can identify unusual email usage patterns that suggest security incidents or policy violations. Alert capabilities should flag failed login attempts, large file transfers, abnormal message volumes, and access from unauthorized locations. Real-time monitoring helps healthcare organizations respond quickly to potential security events before they escalate into breaches.

Log review schedules ensure audit data receives regular examination for potential security incidents or policy violations. Review procedures should specify analysis frequency, responsible personnel, and escalation steps when suspicious activities are discovered. Some entities collect extensive audit data but never review it, missing opportunities to identify security problems early.

Log retention policies balance storage costs with regulatory requirements and potential legal discovery obligations. Retention schedules should consider HIPAA requirements alongside other applicable regulations that might demand longer storage periods.Log data must be destroyed properly when retention periods expire to prevent unauthorized access to historical communications.

Incident Response Documentation and Breach Investigation

HIPAA email incident response procedures must address security events and human errors that might compromise patient information. Response plans should include assessment procedures, containment steps, investigation protocols, and notification requirements for different incident types. Quick response often determines whether a minor security event becomes a reportable breach.

Breach investigation procedures help healthcare organizations determine whether email incidents constitute breaches of unsecured protected health information under HIPAA definitions. Investigation protocols should include evidence collection methods, impact assessments, timeline development, and documentation standards that support internal decisions and potential regulatory reporting. Complex incidents may require external legal and technical expertise.

Notification procedures vary based on incident severity and the type of information potentially compromised. Internal notification processes ensure appropriate personnel are informed about incidents and can participate in response activities. Patient notification requirements create legal obligations that organizations must fulfill within timeframes established by federal regulations.

Corrective action documentation describes measures implemented to prevent similar incidents and demonstrates organizational commitment to improving email security. Action plans should include root cause analysis, remediation steps, implementation timelines, and verification procedures that confirm corrective measures work as intended. Organizations that implement fixes without documenting them may repeat the same mistakes when staff turnover occurs.

Staff Training Documentation and Competency Records

HIPAA email training programs must address technical email operations and regulatory requirements for handling protected health information. Training materials should cover encryption procedures, access controls, incident reporting, and acceptable use policies for email communications. Role-based training ensures different staff groups receive instruction appropriate to their job functions and patient information access levels.

Competency verification procedures help healthcare organizations confirm staff members understand and can properly implement HIPAA email security measures. Verification methods may include written tests, practical demonstrations, and performance monitoring that evaluate staff compliance with email policies. Training programs without competency verification cannot prove that employees actually learned the required information.

Refresher training schedules ensure staff members stay current with evolving threats, policy updates, and new email system features. Training frequency should consider technology change rates, emerging security threats, and organizational policy modifications. Staff members who received training years ago may not remember procedures or may have developed bad habits that compromise security.

Training effectiveness measurement helps healthcare organizations evaluate whether HIPAA email training programs meet learning objectives. Measurement approaches may include before and after assessments, incident rate analysis, and feedback collection that provide insights into training quality. Organizations should adjust training content based on effectiveness data to ensure educational efforts support compliance goals.

System Configuration and Change Control Records

Email system configuration documentation provides detailed records of security settings, access controls, and integration setups that support HIPAA compliance for email. Configuration records should include baseline security settings, approved modifications, and verification procedures that confirm systems maintain appropriate security levels. System administrators need current configuration records to troubleshoot problems and maintain security standards.

Change management procedures ensure modifications to HIPAA email systems receive proper evaluation, testing, and documentation before implementation. Change processes should include security impact assessments, testing protocols, approval workflows, and rollback procedures that minimize risks to email security. Changes made without proper documentation and approval create security vulnerabilities that may not be discovered until a breach occurs.

Version control procedures help healthcare organizations track changes to email system configurations and maintain the ability to restore previous settings when problems occur. Version documentation should include change descriptions, implementation dates, responsible personnel, and verification that modifications function properly. Organizations need version control to understand how their systems evolved and to reverse changes that cause problems.

Patch management procedures ensure email systems receive security updates promptly while maintaining system stability and compliance. Patch processes should include vulnerability assessment, testing protocols, deployment schedules, and verification that updates install correctly. Delayed patching leaves systems vulnerable to known exploits that criminals actively target.

HIPAA Compliant Email Vendor Management and Contract Documentation

Email service provider relationships must include Business Associate Agreements that specify security requirements, compliance obligations, and incident reporting procedures. Contract documentation should cover data handling standards, audit rights, and termination procedures that protect healthcare organizations when vendor relationships end. Regular vendor performance reviews ensure service providers continue meeting contractual obligations.

Vendor compliance verification ensures email service providers maintain their obligations under Business Associate Agreements and healthcare security standards. Verification activities may include security certification reviews, audit report analysis, and compliance documentation that demonstrates ongoing adherence to healthcare privacy requirements. Healthcare organizations that trust vendors without verification may discover compliance failures only after incidents occur.

Service level agreement documentation defines performance expectations, availability targets, and response times for email services and security incidents. Agreement records should include uptime guarantees, incident response procedures, and remediation steps when service levels are not met. Performance tracking helps healthcare organizations evaluate vendor reliability and compliance with contractual commitments.

Vendor communication records document interactions about security updates, policy changes, and compliance requirements that affect email services. Communication logs should include update notifications, compliance discussions, and resolution of security concerns that arise during vendor relationships. Good communication records help resolve disputes and ensure both parties understand their obligations when changes occur.

What Is B2B Marketing in Healthcare?

B2B marketing in healthcare describes the promotion of products and services to healthcare businesses rather than to patients or the public. The audience can include provider groups, payers, laboratories, medical suppliers, health technology firms, and service companies working across the sector. The work calls for a more measured approach than many other business categories because buying decisions tend to involve several stakeholders, internal review, and close attention to data handling, workflow impact, and commercial fit. Good execution depends on clear communication, useful content, and a strong sense of how healthcare organizations evaluate change.

Why healthcare buying requires a different approach

Healthcare companies rarely move through a buying process in a straight line. One person may open the conversation, though several others can influence whether it goes any further. Finance may want a clearer commercial case. Operations may focus on staffing, efficiency, and implementation pressure. IT may look at access, system fit, and data management. Compliance teams may review privacy implications or contractual language. B2B marketing in healthcare works better when the writing reflects those realities early. Buyers are looking for material that helps them assess risk, discuss options internally, and move forward with fewer unanswered questions.

A Difference in stakeholder priorities

A single account can contain several audiences at once. That is part of what makes this area demanding. A hospital operations leader may care about throughput and day to day workflow. A payer executive may be more interested in administrative efficiency or review times. A supplier may focus on coordination, ordering processes, or communication across partner relationships. Content becomes stronger when it takes those different perspectives seriously. The message does not need to become overly technical. It needs enough accuracy and relevance for each reader to feel that the company understands the conditions attached to their role.

Why credibility matters in every channel

Healthcare buyers tend to read promotional material carefully. They notice vague claims, inflated language, and unsupported promises very quickly. That is why credibility has to be built into the writing itself. A clean explanation of a business problem can carry real weight. A grounded case example can help a reader picture how a solution would work in practice. Clear language around implementation, support, privacy, or service structure can also help keep the conversation moving. When protected health information enters the picture, HIPAA may become part of the review as well, especially for companies handling regulated data or supporting covered entities and business associates.

Content to support real decisions

The most useful assets in this space are the ones that help buyers think more clearly. An article can frame a problem in a way that supports internal discussion. An email sequence can keep a company visible while review is taking place. A service page can answer practical questions before a meeting is booked. B2B marketing in healthcare gains traction when content has a clear job and a clear reader. That focus usually produces stronger engagement than broad copy built around generic thought leadership language. Buyers respond well to material that respects their time and gives them something worth passing along.

What strong performance looks like

Success in healthcare is rarely captured by surface numbers alone. Traffic and opens may show that content has reached people, though those signals do not say much on their own about buying intent. Better indicators include repeat visits from the same organization, replies from relevant contacts, deeper engagement with security or implementation pages, and growing activity across several stakeholders in one account. Those patterns can tell commercial teams where interest is becoming more serious. B2B marketing in healthcare proves its value when it helps those teams follow up with better timing, better context, and material that fits the next stage of evaluation.

hands on a keyboard sending secure email

How to Secure SMTP Email Delivery with TLS

Secure email sending is a priority for organizations that communicate sensitive data externally. One of the most common ways to send secure emails is with SMTP TLS. TLS stands for Transport Layer Security and is the successor of SSL (Secure Socket Layer). TLS is one of the standard ways that computers on the internet transmit information over an encrypted channel. In general, when one computer connects to another computer and uses TLS, the following happens:

  1. Computer A connects to Computer B (no security)
  2. Computer B says “Hello” (no security)
  3. Computer A says, “Let’s talk securely over TLS” (no security)
  4. Computers A and B agree on how to do this (secure)
  5. The rest of the conversation is encrypted (secure)

In particular:

  • The conversation is encrypted
  • Computer A can verify the identity of Computer B (by examining its SSL certificate, which is required for this dialog)
  • The conversation cannot be eavesdropped upon (without Computer A knowing)
  • A third party cannot modify the conversation
  • Third parties cannot inject other information into the conversation.

TLS and SSL help make the internet a more secure place. One popular way to use TLS is to secure SMTP to protect the transmission of email messages between servers.

Secure SMTP Email Delivery with TLS 

The mechanism and language by which one email server transmits email messages to another email server is called Simple Mail Transport Protocol, or SMTP. For a long time, email servers have had the option of using TLS to transparently encrypt the message transmission from one server to another.

When available, using TLS with SMTP ensures the message contents are secured during transmission between the servers. Unfortunately, not all servers support TLS! Many email providers, especially free or public ones, have historically not supported TLS. Thankfully, the trend is shifting. LuxSci found that most providers now support TLS- approximately 85% of domains tested as of July 2022.

Using TLS requires that the server administrators:

  1. purchase SSL certificates
  2. configure the email servers to use them (and keep these configurations updated)
  3. allocate additional computational resources on the email servers involved.

For TLS transmission to be used, the destination email server must offer support for TLS, and the sending computer or server must be configured to use TLS connections when possible.

The sending computer or server could be configured for:

  1. No TLS: never use it.
  2. Opportunistic TLS: use it if available; if not, send it insecurely.
  3. Forced TLS: use TLS or do not deliver the email at all.

How Secure is Email Delivery over SMTP TLS?

TLS protects the transmission of the email message contents. It does nothing to protect the security of the message before it is sent or after it arrives at its destination. For that, other encryption mechanisms may be used, such as PGP, S/MIME, or storage in a secure portal.

For sending sensitive information to customers, transmission security is the minimum standard for compliance with healthcare and financial regulations. TLS is appropriate to meet most compliance requirements and offers an excellent alternative to more robust and less user-friendly encryption methods (like PGP and S/MIME).

There are different versions of TLS- 1.0 and 1.1 use older ciphers and are not as secure, while TLS 1.2 and 1.3 use newer ciphers and are more secure. When an email is sent, the level of TLS used is as secure as can be negotiated between the sending and receiving servers. If they both support strong encryption (like AES 256), then that will be used. If not, a weaker grade of encryption may be used. The sending and receiving servers can choose the types of encryption they will support. If there is no overlap in what they support, then TLS will fail (this is rare).

What About Replies to Secure Messages?

Let’s say you send a message to someone that is securely delivered to their inbox over TLS. Then, that person replies to you. Will that reply be secure? This may be important if you are communicating sensitive information. The reply will use TLS only if:

  1. The recipient’s servers support TLS for outbound email (there is no way to test this externally).
  2. The mail servers (where the “From” or “Reply” email address is hosted) support TLS for inbound email.
  3. Both servers support overlapping TLS ciphers and protocols and can agree on a mutually acceptable means of encryption.

Unless familiar with the providers in question, it cannot be assumed that replies will use TLS. So, what should you do? Ultimately, it depends on what compliance standards you must meet, the level of risk you are willing to accept, and the types of communications you send. There are two general approaches to this question:

  1. Conservative. If replies must be secure in all cases, assuming TLS will be used is unreasonable. In this case, a more secure method should be used to encrypt the messages in transit and store them upon arrival. The recipient must log in to a secure portal to view the message and reply securely. Alternatively, PGP or S/MIME could be used for additional security.
  2. Aggressive. In some compliance situations like HIPAA, healthcare providers must ensure that ePHI is sent securely to patients. However, patients are not beholden to HIPAA and can send their information insecurely to anyone they want. If the patient’s reply is insecure, that could be okay. For these reasons, and because using TLS for email security is so easy, many do not worry about the security of email replies. However, this should be a risk factor you consider in an internal security audit. Consider nuanced policies that allow you to send less sensitive messages with TLS while sending more sensitive messages with higher security.

What are the Weaknesses of SMTP TLS?

As discussed, SMTP TLS has been around for a long time and has recently seen a great deal of adoption. However, it has some deficiencies compared to other types of email security:

  • There is no mandatory support for TLS in the email system.
  • A receiver’s support of the SMTP TLS option can be trivially removed by an active man-in-the-middle because TLS certificates are not actively verified.
  • Encryption is not used if any aspect of the TLS negotiation is undecipherable/garbled. It is very easy for a man-in-the-middle to inject garbage into the TLS handshake (which is done in clear text) and have the connection downgraded to plain text (opportunistic TLS) or have the connection fail (forced TLS).
  • Even when SMTP TLS is offered and accepted, the certificate presented during the TLS handshake is usually not checked to see if it is for the expected domain and unexpired. Most MTAs offer self-signed certificates as a pro forma. Thus, in many cases, one has an encrypted channel to an unauthenticated MTA, which can only prevent passive eavesdropping.

The Latest Updates to Secure SMTP TLS

Some solutions help remedy these issues—for example, SMTP Strict Transport Security. SMTP STS enables recipient servers to publish information about their SMTP TLS support in their DNS. This prevents man-in-the-middle downgrades to plain text delivery, ensures more robust TLS protocols are used, and can enable certificate validation.

In addition, users can adopt TLS 1.3. NIST recommends that government agencies develop migration plans to support TLS 1.3 by January 1, 2024. LuxSci supports both SMTP MTA-STS and TLS 1.3.

How Secure SMTP TLS Email Works with LuxSci

Inbound TLS

LuxSci’s inbound email servers support TLS for encrypted inbound email delivery from any sending email provider that also supports that. For selected organizations, LuxSci also locks down its servers to only accept email from them if delivered over TLS.

Outbound Opportunistic TLS

LuxSci’s outbound email servers will always use TLS with any server that claims to support it and with whom we can talk TLS v1.0+ using a strong cipher. The message will not be sent securely if the TLS connection to such a server fails (due to misconfiguration or no security protocols in common). Outbound opportunistic TLS encryption is automatic for all LuxSci customers, even those without SecureLine.

Forced TLS

When Forced TLS is enabled, the message is either dropped or sent with an alternate form of encryption if the recipient’s server does not support TLS. This ensures that messages will never be sent insecurely. Forced TLS is also in place for all LuxSci customers sending to banks and organizations that have requested that we globally enforce TLS to their servers.

Support for strong encryption

LuxSci’s servers will use the strongest encryption supported by the recipient’s email server. LuxSci servers will never employ an encryption cipher that uses less than 128 bits (they will fail to deliver rather than deliver via an excessively weak encryption cipher), and they will never use SSL v2 or SSL v3.

Does LuxSci Have Any Other Special TLS Features?

When using LuxSci SecureLine for outbound email encryption:

  1. SMTP MTA STS: LuxSci’s domains support SMTP MTA STS, and LuxSci’s SecureLine encryption system leverages STS information about recipient domains to improve connection security.
  2. Try TLS: Account administrators can have secure messages “try TLS first” and deliver that way. If TLS is unavailable, the messages would fall back and use more secure options like PGP, S/MIME, or Escrow. Email security is easy, seamless, and automatic when communicating internally or with others who support TLS.
  3. TLS Exclusive: This is a special LuxSci-exclusive TLS sending feature. TLS Exclusive is just like Forced TLS, except that messages that can’t connect over TLS are just dropped. This is ideal for low-importance emails that must still be compliant, like email marketing messages in healthcare. In such cases, the ease of use of TLS is more important than receiving the message.
  4. TLS Only Forwarding: Account administrators can restrict any server-side email forwarding settings in their accounts from allowing forwarding to any email addresses that do not support TLS for email delivery.
  5. Encryption Escalation: Often, TLS is suitable for most messages, but some messages need to be encrypted using something stronger. LuxSci allows users to escalate the encryption from TLS to Escrow with a click (in WebMail) or by entering particular text in the subject line (for messages sent from email programs like Outlook).
  6. Domain Monitoring: When TLS delivery is enabled for SecureLine accounts, messages will never be insecurely sent to domains that purport to be TLS-enabled, i.e., TLS delivery is enforced and no longer “opportunistic.” The system monitors these domains and updates their TLS-compliance status daily.
  7. Double Encryption: Messages sent using SecureLine and PGP or S/MIME will still use Opportunistic TLS whenever possible for message delivery. In these cases, messages are often “double encrypted.” First, they are encrypted with PGP or S/MIME and may be encrypted again during transport using TLS.
  8. No Weak TLS: Unlike many organizations, LuxSci’s TLS support for SMTP and other servers only supports those protocol levels (e.g., TLS v1.0+) and ciphers recommended by NIST for government communications and which are required for HIPAA. So, all communications with LuxSci servers will be over a compliant implementation of TLS.

For customers who can use TLS to meet security or compliance requirements, it enables seamless security and “use of email as usual.” SecureLine with Forced TLS enables clients to take advantage of this level of security whenever possible while automatically falling back to other methods when TLS is unavailable.

Of course, using Forced TLS as the sole method of encryption is optional; if your compliance needs are more substantial, you can turn off TLS-Only delivery or restrict it so that it is used only with specific recipients.

If your email use cases are complicated, LuxSci’s flexibility enables the secure sending of emails to any recipient, regardless of their email service provider’s support for TLS. Contact the LuxSci sales team to learn more about our secure SMTP TLS email sending.