What is a HIPAA Compliant Email Service?

HIPAA Compliant Email
Erik Kangas
August 28, 2025

A HIPAA compliant email service is a secure email platform that meets all Health Insurance Portability and Accountability Act requirements for protecting patient health information during electronic communications. These specialized email platforms implement administrative, physical, and technical safeguards required under the HIPAA Security Rule, enabling healthcare providers, business associates, and covered entities to transmit protected health information electronically without violating federal privacy regulations. Unlike standard email services that lack encryption and access controls, a HIPAA compliant email service incorporates end-to-end encryption, audit logging, user authentication protocols, and business associate agreements to ensure that all electronic communications containing individually identifiable health information remain secure throughout transmission and storage.

Why a HIPAA Compliant Email Service is Necessary

Healthcare organizations that handle protected health information must comply with stringent regulatory requirements when using electronic communication systems. The HIPAA Security Rule mandates that covered entities implement appropriate administrative, physical, and operational safeguards to protect the confidentiality, integrity, and availability of electronic protected health information. When healthcare providers use email to communicate about patients, discuss treatment plans, or transmit medical records, these communications become subject to HIPAA regulations because they contain individually identifiable health information. Standard consumer email services like Gmail, Yahoo, or Outlook do not provide the necessary security controls required for healthcare communications, creating potential compliance violations that can result in substantial penalties from the Office for Civil Rights.

A HIPAA compliant email service handles these regulatory challenges by implementing encryption protocols, access controls, and audit mechanisms required under federal law. These specialized platforms ensure that all email communications are encrypted both in transit and at rest, preventing unauthorized access to protected health information even if messages are intercepted during transmission. Healthcare organizations using a HIPAA compliant email service can establish proper business associate agreements with their email provider, creating the legal framework required for third-party handling of protected health information.

Safeguards in Healthcare Email Systems

The administrative safeguards required for a HIPAA compliant email service involves policies, procedures, and controls governing how healthcare organizations manage email communications containing protected health information. Healthcare entities implementing secure email systems need to establish clear protocols for user access management, ensuring that only authorized workforce members can send, receive, or access emails containing patient information. These administrative controls include implementing role-based access permissions, establishing procedures for granting and revoking email access when employees join or leave the organization, and maintaining detailed documentation of all email-related policies and training programs.

Workforce training is another important aspect of safeguards for healthcare email communications. Organizations using a HIPAA compliant email service need to educate their staff about proper email usage, including guidelines for when it is appropriate to include protected health information in electronic communications, how to properly send secure emails, and procedures for reporting potential security incidents or unauthorized access attempts. This training ensures that healthcare workers understand their responsibilities when using secure email systems and helps prevent inadvertent disclosure of protected health information through improper email practices. Refresher training and updates to email policies help maintain compliance as technology and regulations evolve, while documented training records provide evidence of organizational commitment to protecting patient privacy.

Encryption Standards

Operational safeguards are the core of any HIPAA compliant email service, delivering the security controls necessary to protect electronic protected health information during transmission and storage. End-to-end encryption represents the most important technical safeguard, ensuring that email messages containing patient information are encrypted using strong cryptographic algorithms before transmission and can only be decrypted by authorized recipients. Modern secure email platforms implement Advanced Encryption Standard (AES) with 256-bit keys or similar encryption methods that meet current industry standards for protecting sensitive healthcare data. This encryption protects against unauthorized interception of email communications, even if messages are captured while traveling across public internet networks.

Access control mechanisms within a HIPAA compliant email service prevent unauthorized users from accessing protected health information stored in email systems. Multi-factor authentication requirements ensure that users must provide multiple forms of verification before accessing their secure email accounts, adding additional protection beyond simple username and password combinations. Automated audit logging captures detailed records of all email activities, including message sending and receiving times, user login attempts, and any administrative actions performed within the system. These audit logs provide healthcare organizations with the documentation necessary to demonstrate compliance during regulatory audits while also enabling detection of potential security incidents or unauthorized access attempts.

Digital certificates and secure email gateways provide additional technical safeguards by verifying the identity of email senders and recipients while ensuring that messages can only be transmitted between properly authenticated parties. Message integrity controls detect any unauthorized modifications to email content during transmission, while secure backup and disaster recovery systems protect against data loss while maintaining encryption standards for stored communications.

Physical Safeguards for Email Infrastructure

Physical safeguards protect the computer systems, workstations, and electronic media used to store and process emails containing protected health information. A HIPAA compliant email service provider maintains secure data centers with appropriate physical access controls, environmental protections, and equipment safeguards to prevent unauthorized access to servers hosting healthcare communications. These data centers implement multiple layers of physical security, including biometric access controls, security cameras, environmental monitoring systems, and redundant power supplies to ensure continuous protection of stored email data.

Healthcare organizations using secure email services also need to implement appropriate physical safeguards at their own facilities. Workstations used to access a HIPAA compliant email service need proper positioning to prevent unauthorized viewing of email content, automatic screen locks when users step away from their computers, and secure disposal procedures for any printed email communications containing protected health information. Mobile devices accessing secure email systems require additional protection through device encryption, remote wipe capabilities, and secure container technologies that separate healthcare communications from personal data on employee smartphones or tablets.

Environmental controls within healthcare facilities help protect against physical threats to email security, including proper climate control for computer equipment, fire suppression systems that won’t damage electronic devices, and backup power systems to maintain email availability during emergencies. Regular maintenance and monitoring of physical infrastructure ensure that protective measures remain effective while documentation of physical safeguards provides evidence of organizational commitment to protecting patient information stored in electronic communications.

Business Associate Agreements & Vendor Management

Healthcare organizations selecting a HIPAA compliant email service need to establish proper business associate agreements that define the legal responsibilities and obligations of both parties regarding protected health information. These agreements specify how the email service provider will protect patient data, what uses and disclosures are permitted, how security incidents will be reported, and what happens to protected health information when the business relationship ends. A comprehensive business associate agreement for email services addresses encryption requirements, audit logging standards, employee training obligations for the service provider, and procedures for responding to regulatory inquiries or patient requests for information.

Vendor due diligence processes help healthcare organizations evaluate potential email service providers to ensure they can meet HIPAA compliance requirements. This evaluation includes reviewing the provider’s security certifications, examining their data center facilities and security controls, assessing their incident response capabilities, and verifying their experience with healthcare industry regulations. Ongoing vendor management activities include regular security assessments, review of audit reports and compliance documentation, monitoring of service level agreements, and periodic evaluation of the email provider’s ability to adapt to changing regulatory requirements.

Healthcare organizations also need to consider the geographic location of email servers and data processing facilities when selecting a HIPAA compliant email service provider. Some providers offer options for maintaining all protected health information within United States borders, while others may provide additional privacy protections through international data processing agreements. Contract negotiations address liability allocation, insurance requirements, termination procedures, and dispute resolution mechanisms to protect healthcare organizations from potential compliance violations or security incidents related to their email communications.

Implementation and Migration

Healthcare organizations transitioning to a HIPAA compliant email service need careful planning to ensure seamless migration while maintaining security throughout the process. Implementation strategies address user training requirements, data migration procedures, integration with existing healthcare information systems, and testing protocols to verify proper security controls before going live with the new email system. Organizations need to develop detailed project timelines that account for user adoption challenges, potential technical issues, and regulatory compliance verification activities while minimizing disruption to patient care activities.

Migration planning includes inventory of existing email communications containing protected health information, assessment of integration requirements with electronic health record systems and practice management software, and development of backup procedures to protect against data loss during the transition process. Healthcare organizations need to coordinate with their chosen email service provider to establish proper configuration settings, implement appropriate security controls, and conduct thorough testing of encryption, access controls, and audit logging capabilities. User acceptance testing ensures that healthcare workers can effectively use the new secure email system while maintaining productivity and patient care quality.

Post-implementation activities include monitoring of email security controls, regular review of audit logs and compliance reports, periodic security assessments to identify potential vulnerabilities, and continuous training programs to help users adapt to new email features and security requirements. Healthcare organizations benefit from establishing internal email governance committees that oversee compliance activities, evaluate new email features or capabilities, and coordinate responses to security incidents or regulatory changes affecting electronic communications.

Erik Kangas

With 30 years engaged in to both academic research and software architecture, Erik Kangas is the founder and Chief Technology Officer of LuxSci, playing a core role in building the company into the market leader for HIPAA compliant, secure healthcare communications solutions that it is today. An international lecturer on messaging security, Erik also advises and consults on email technology strategies and best practices, secure architectures, and HIPAA compliance. Erik holds undergraduate degrees in physics and mathematics from Case Western Reserve University, and a doctoral degree in computational biophysics from MIT. Erik Kangas — LinkedIn

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

May 12, 2026
Pete Wermter

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

May 5, 2026
Pete Wermter

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 Volume	Monthly 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

Patient Engagement ROI: The Business Case for Secure Email in Healthcare

April 28, 2026
Pete Wermter

Every IT investment in healthcare today is being evaluated through a sharper lens.

Budgets are tighter. Expectations are higher. AI is the shiny object. Across healthcare organizations, leadership is asking the same question: how does this investment drive measurable results?

That’s where Patient Engagement ROI comes in, and where many traditional approaches fall short.

The Hidden Cost of Ineffective Communication

Patient engagement isn’t just a healthcare priority. It’s a financial one.

Missed appointments, gaps in care, and low response rates all translate directly into increased costs, operational inefficiencies, and a poor patient experience. Yet many organizations still rely on fragmented, manual, or non-personalized communication strategies.

Why?

For many, it’s because of uncertainty around HIPAA compliance, and what’s allowed and not allowed. Too often, healthcare IT and marketing teams avoid using valuable patient data to avoid security and compliance risks, especially over the email channel. The result is often generic outreach that fails to connect, and fails to deliver meaningful results, such as better health outcomes, fewer missed appointments, and increased sales.

How Secure Email Delivers ROI in Healthcare

Among all healthcare IT investments, secure email stands out for one reason: it directly impacts both patient engagement and staff and process efficiency.

With the right HIPAA-compliant marketing automation platform, secure email enables organizations to:

Deliver personalized, relevant messages using PHI data in their emails
Automate outreach at scale with triggered, engagement-driven campaigns
Improve patient response rates and adherence for better outcomes
Reduce manual workload across teams for greater productivity

This is where patient engagement ROI becomes tangible.

Instead of one-size-fits-all messaging, organizations can connect with patients based on unique needs and health conditions, such as appointments, care plans, preventative care reminders, new product needs, and more. And because it’s automated, these improvements scale without adding to workloads.

Turning Compliance into Better Outcomes and Growth

HIPAA is often viewed as a constraint. In reality, it’s an opportunity. If you have the right tools.

At LuxSci, we focus exclusively on secure healthcare communications, helping organizations safely unlock the value of their data and communications. Our solutions are designed to remove the friction between compliance and communication, so you don’t have to choose between security and growth.

With capabilities like flexible encryption, advanced segmentation, and high-volume delivery, secure email marketing becomes more than a safeguard, it becomes a growth driver.

And with industry-leading security performance and recognition, organizations can trust that their communications are protected at every level with LuxSci.

Scaling Patient Engagement ROI with Automation

The real power of secure email comes when it’s combined with automated healthcare workflows.

HIPAA compliant marketing automation allows you to build multi-step, data-driven patient journeys that run continuously in the background, taking adaptive steps based on each individual’s email engagement activity. This can include:

Appointment reminders that reduce no-shows
Follow-up communications that improve outcomes
Preventative care outreach for check-ups, annual test and care reminders
New product offers, upgrades and promotions
Educational email campaigns that drive long-term engagement and better health

Each interaction is an opportunity to improve both patient experience and your financial performance. Over time, these incremental gains compound, resulting in significantly higher patient engagement that delivers real value to your business.

Why Act Now?

Healthcare organizations can no longer afford IT investments that don’t deliver clear, measurable value. Secure email, powered by HIPAA compliant marketing automation, offers one of the most direct paths to improving engagement, efficiency, and outcomes, all while maintaining the highest standards of security.

Ready to see how LuxSci secure email can transform your patient engagement into real ROI?

Connect with us today or book a demo to explore how HITRUST-certified, HIPAA-compliant marketing automation can work for your organization.

What Is B2B Marketing in Healthcare?

April 27, 2026
Erik Kangas

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.

Rethinking HIPAA Compliant Email – Not Just a Checkbox

January 20, 2026
Pete Wermter

The compliance-only mentality is outdated.

Let’s be honest—when most healthcare organizations think about HIPAA compliant email, it’s usually in the context of avoiding fines or satisfying checklists. And while yes, compliance is critical, viewing it only through the lens of risk management is a missed opportunity.

In reality, HIPAA compliant email, when implemented properly, is one of the most powerful tools for patient and customer engagement. Why? Because it unlocks the ability to leverage protected health information (PHI) safely, enabling personalized, timely, and high-impact email communication that drives better engagement, satisfaction, and outcomes.

What Makes Email Truly HIPAA Compliant?

As a reminder, HIPAA compliant email requires that protected health information (PHI) is safeguarded both in transit and at rest. That means your email provider must:

Use encryption at all times

Be access-controlled

Include audit logs

Be stored and transmitted in a secure manner

Provide a Business Associate Agreement

Regular email services just don’t cut it. In fact, most consumer or marketing email platforms like Sendgrid or Constant Contact, while great at sending email, are not HIPAA compliant or have limitations when it comes to using PHI in your messages. Even when bolted-on encryption solutions are used, they often lack the flexibility, scalability, and automation needed for safe and effective healthcare email engagement.

LuxSci goes beyond the basics with policy-based encryption, secure TLS, PKI encryption and escrow/secure portal options. LuxSci’s SecureLine™ encryption technology dynamically selects the appropriate encryption method based on recipient capabilities and messaging context and can be configured to enforce secure delivery automatically according to organizational policies. LuxSci also provides the ability to enforce advanced multi-factor authentication. Every message is tracked with full audit trails—no guesswork, no loose ends.

The Real Opportunity – Secure, Personalized Email with PHI

Using PHI to Drive Personalized Messaging
Imagine sending a personalized reminder to a diabetic patient about an upcoming check-up. Or reaching out to new mothers with postnatal care resources tailored to their needs. Or sending automated email workflows to all your members to accelerate and increase new plan enrollments. Or email customer and prospects about a new product upgrade or new service offering. The list goes on. That’s the power of PHI-personalized email—when done securely.

Targeted Segmentation with Sensitive Data
With HIPAA compliant email solutions like LuxSci, you can segment your audience based on real health data with high levels of precision, such as chronic conditions, appointment history, insurance status, health risks, and more, without compromising patient trust or security.

Breaking the One-Size-Fits-All Approach in Healthcare Email
Generic email blasts are over. Modern patients expect personalization. With LuxSci, you can deliver highly targeted, highly secure emails with encrypted content, while staying HIPAA compliant.

Real Business Results from Secure Email

Here’s how secure, personalized email can drive improved results across a range of healthcare communications, including:

Increased Patient Appointments and Follow-ups – Sending encrypted, personalized appointment reminders and follow-up notices can reduce no-shows and boost overall appointment volume.
Boosting Preventative Care with Outreach Campaigns – Preventative campaigns (think flu shots or cancer screenings) sent securely to the right segments can lead to higher response rates, better health outcomes, and a lower cost of care.
Improving Health Plan Enrollments – Targeted email outreach during open enrollment, tailored by eligibility or plan type, and powered by automated workflows leads to higher enrollments and lower call center costs.
Driving Awareness and Sales of New Services or Products – Have a product upgrade offer, new wellness program or telehealth service? Send secure, PHI-informed HIPAA compliant email to the right audience for increased sales and faster adoption.
Optimize Explanation of Benefits Notices – Replace snail mail with email that’s fast, reliable and trackable, ensuring customers are informed and compliance is met.

The Healthcare Marketer’s Secret Weapon: Using PHI Responsibly

In a world moving away from third-party cookies, first-party data is more valuable than ever, and PHI is the most powerful form of it in healthcare. With secure HIPAA compliant email, PHI doesn’t have to be locked away. Marketers can safely use it to understand patient needs and send relevant, timely messages. PHI-driven segmentation lets you build hyper-targeted campaigns that speak to relevant conditions, unique needs and timely topics, increasing open rates, clicks throughs, and campaign conversions.

Meeting the Personalization Demands of Today’s Patients and Customers

HIPAA-compliant email is no longer just about checking a box. It’s about unlocking the full potential of your patient and customer data to drive better engagement, healthier outcomes, and measurable business results.

In closing, below are some final thoughts on how secure, HIPAA compliant email delivers long-term value for your organization and better connections with your patients and customers, including:

- Future-Proofing Healthcare Engagement – Patients expect Amazon-level personalization. HIPAA-compliant tools let you meet those expectations securely.

- Adapting to Data Privacy Regulations Beyond HIPAA – From GDPR to state-level privacy laws, secure communication is no longer optional, it’s foundational.

- Building Trust Through Secure Communication – Each secure, personalized message sent is a trust-building moment with your patients and customers.

Why LuxSci? The Infrastructure Behind the Performance

With LuxSci’s secure email infrastructure and email marketing solutions, healthcare organizations can confidently personalize communication, reach patients more effectively, and fuel growth with PHI-safe segmentation, messaging, and email automation.

LuxSci takes data security and email performance to the next level by offering dedicated cloud infrastructure for each customer, which means your email campaigns aren’t slowed down by other vendors on shared cloud services and your attack footprint is much smaller. In short, you get higher delivery rates and throughput with proven HIPAA compliance and data security.

The future of healthcare engagement is personal, secure, and performance-driven—and it starts with HIPAA compliant email done right.

Reach out today with any questions or to learn more about LuxSci.

FAQs

1. Is HIPAA-compliant email necessary for marketing communications?
Yes—if your emails include or are based on PHI (like appointment reminders, condition-based messaging, or insurance info), you need HIPAA-compliant email and recipient consent to avoid legal risk and preserve patient trust.

2. Can PHI be used in marketing emails under HIPAA?
Yes, with proper consent and secure, HIPAA compliant infrastructure like LuxSci’s, PHI can be safely used in emails for personalized, segmented campaigns.

3. How does LuxSci ensure high email deliverability for healthcare messages?
LuxSci uses dedicated cloud servers for each customer, active email reputation monitoring, and best-practice configurations to ensure high deliverability rates for sensitive emails.

4. Is LuxSci only for marketing teams?
No—LuxSci supports marketing, clinical, operations, and IT teams by enabling secure, compliant email communication across the entire organization.

5. What types of PHI can I use to segment campaigns using LuxSci?
You can segment based on chronic conditions, visit history, insurance status, provider details, age, gender, location, and more—all while staying fully compliant.

Healthcare Email Marketing Best Practice Guidelines

May 16, 2025
Erik Kangas

Healthcare email marketing best practices involve the strategies, compliance measures, and patient-centered approaches that healthcare organizations use to create effective email communications while maintaining regulatory compliance and patient trust. These practices include obtaining proper consent, creating valuable content, implementing security measures, and measuring performance in ways that support patient care objectives rather than purely commercial goals. Healthcare providers, payers, and suppliers must follow healthcare email marketing best practice to avoid HIPAA violations, respect patient preferences, and build meaningful relationships with their communities. Understanding healthcare email marketing best practice helps organizations develop communication strategies that engage patients, promote health outcomes, and support organizational missions while navigating complex regulatory requirements and maintaining professional standards.

Patient Consent And Privacy Protection Best Practice

Healthcare email marketing best practice requires obtaining explicit patient consent before sending promotional communications and maintaining detailed records of consent preferences and dates. Organizations should use clear, plain language consent forms that explain what types of emails patients will receive, how frequently communications will be sent, and how patients can modify their preferences or unsubscribe completely. Consent should be specific to different types of campaigns rather than blanket authorization for all marketing communications.

Double opt-in procedures verify email addresses and confirm patient intent to receive marketing communications, reducing the likelihood of complaints and improving engagement rates. This process involves sending a confirmation email that requires recipients to click a link or reply to confirm their subscription. Healthcare email marketing best practice includes documenting these confirmation steps to demonstrate patient intent during compliance reviews.

Preference management systems allow patients to customize their communication preferences without completely opting out of all healthcare communications. Patients should be able to select specific types of content, adjust email frequency, or choose alternative communication methods. These systems help maintain patient engagement while respecting individual preferences and reducing unsubscribe rates.

Privacy protection measures include using secure email platforms, encrypting patient information, and limiting access to email lists based on job responsibilities. Healthcare organizations should never share patient email addresses with third parties without explicit consent and should implement data retention policies that automatically remove inactive subscribers after appropriate time periods.

Content Development And Educational Focus Best Practice

Healthcare email marketing best practice prioritizes educational content and patient value over promotional messaging to build trust and establish organizations as reliable health information sources. Content should be evidence-based, medically accurate, and reviewed by qualified healthcare professionals before distribution. Educational newsletters, health tips, and preventive care reminders provide value to recipients while supporting patient health objectives.

Seasonal health content aligns with patient needs and natural health awareness cycles throughout the year. Flu vaccination campaigns in fall, heart health education during February, and skin cancer awareness in summer provide timely, relevant information that patients find useful. This approach improves engagement while supporting public health initiatives and preventive care goals.

Content accessibility ensures that email communications can be understood and used by patients with varying health literacy levels, language preferences, and technological capabilities. Healthcare email marketing best practice includes using plain language, providing content in multiple languages when appropriate, and ensuring emails display correctly on mobile devices and various email clients.

Patient story integration and testimonials can provide emotional connection and practical insights while maintaining patient privacy protections. These stories should focus on health outcomes, positive experiences, and educational value rather than promotional messaging. All patient stories require explicit written consent and should be reviewed for privacy compliance before publication.

Timing And Frequency Optimization Best Practice

Healthcare email marketing best practice involves analyzing patient engagement patterns to determine optimal sending times and frequencies for different types of communications. Appointment reminders may perform better when sent during business hours, while educational content might be more effective during evening hours when patients have time to read longer materials. Testing different send times helps optimize engagement rates.

Campaign frequency should balance patient engagement with respect for recipient preferences and inbox management. Healthcare email marketing best practice suggests starting with conservative frequencies and adjusting based on engagement metrics and patient feedback. Weekly educational newsletters may be appropriate for some audiences, while monthly communications work better for others.

Automated campaign scheduling allows healthcare organizations to maintain consistent communication without overwhelming staff resources or patient inboxes. Triggered campaigns based on appointment schedules, discharge events, or care milestones provide timely, relevant information while reducing manual workload. These automated systems should include safeguards to prevent excessive communications to individual patients.

Campaign coordination across departments prevents patients from receiving multiple conflicting or redundant messages from the same healthcare organization. Healthcare email marketing best practice includes establishing communication calendars and approval processes that ensure consistent messaging and appropriate timing across different service lines and departments.

Compliance Monitoring And Quality Assurance Best Practice

Regular compliance audits verify that healthcare email marketing practices align with HIPAA requirements, CAN-SPAM regulations, and organizational policies. These audits should examine consent documentation, content approval processes, security measures, and patient complaint handling procedures. Healthcare email marketing best practice includes documenting audit results and implementing corrective actions when issues are identified.

Staff training programs ensure that team members understand regulatory requirements, patient privacy obligations, and organizational policies for email marketing activities. Training should cover consent management, content development, security procedures, and incident reporting requirements. Regular training updates address changing regulations and emerging best practices in healthcare communication.

Quality assurance processes include content review, technical testing, and approval workflows that prevent errors and ensure professional communication standards. Healthcare email marketing best practice involves multiple review stages including medical accuracy verification, compliance checking, and technical testing across different devices and email clients before campaign deployment.

Incident response procedures address patient complaints, privacy concerns, and technical issues that may arise during email marketing campaigns. Organizations should have clear escalation processes, investigation procedures, and remediation steps that address problems quickly and demonstrate commitment to patient satisfaction and regulatory compliance.

Performance Analysis And Continuous Improvement Best Practice

Healthcare email marketing best practice includes measuring campaign performance using metrics that reflect patient engagement, health outcomes, and organizational objectives rather than purely commercial success indicators. Appointment booking rates, screening completion rates, and patient satisfaction scores provide more meaningful performance indicators than traditional marketing metrics alone.

Patient feedback collection through surveys, focus groups, and direct communication helps healthcare organizations understand recipient preferences and identify improvement opportunities. This feedback should guide content development, timing decisions, and communication strategy adjustments. Healthcare email marketing best practice involves regularly soliciting and acting on patient input.

Benchmarking against healthcare industry standards and similar organizations provides context for performance evaluation and identifies areas for improvement. Healthcare organizations should compare their engagement rates, unsubscribe rates, and patient satisfaction scores with relevant industry benchmarks while accounting for differences in patient populations and organizational characteristics.

Continuous optimization based on data analysis, patient feedback, and regulatory changes ensures that email marketing practices remain effective and compliant over time. Healthcare email marketing best practice includes regular strategy reviews, campaign performance analysis, and implementation of evidence-based improvements that enhance patient engagement while maintaining regulatory compliance and professional standards

Is Microsoft Outlook HIPAA Compliant? Understanding Microsoft Email Security

February 12, 2025
Pete Wermter

Microsoft Outlook is one of the most widely used email platforms, including in healthcare, but is it truly HIPAA-compliant? The answer isn’t straightforward. While Outlook, and the entire Microsoft 365 application suite, offer security features that can support HIPAA compliance, they are not inherently compliant out of the box.

Healthcare organizations must actually take additional measures to ensure they meet HIPAA’s stringent requirements before they can transmit electronic protected health information (ePHI) in their email communications – without risking the consequences of non-compliance.

With this in mind, this post examines Microsoft 365 and Microsoft Outlook’s security capabilities, where and how they fall short of compliance standards, and, subsequently, how to secure each application in accordance with HIPAA regulations.

Understanding HIPAA Compliant Email Requirements

HIPAA compliant email requires healthcare organizations to implement a series of technical, administrative, and physical safeguards to protect the sensitive patient data that they’ve amassed during the course of their operations – and are legally obliged to secure it in transit and at rest. Taking a brief look at each category in turn, these safeguards include:

Technical

Encryption: converting ePHI into an unreadable format.
Access controls: ensuring only authorized personnel can access patient data.
Audit logs: tracking who has accessed ePHI and what they did with it.

Administrative

Risk assessments: identifying and categorizing risks to ePHI and implementing mitigation measures.
Workforce training: educating employees, especially those who handle ePHI, on how to identify cyber threats, e.g, phishing, and how to respond.
Business Associate Agreements (BAAs): a required document for HIPAA compliance that outlines each party’s responsibility and liability in protecting patient data.

Physical safeguards:

Securing servers: preventing access to the servers on which ePHI resides.
Restricting device access: implementing measures to keep malicious actors from accessing employee devices, should one fall into their hands.
Implementing screen locks: a simple, yet effective, form of device access control is setting them to lock after a few seconds of inactivity.

What Security Features Do Microsoft 365 and Microsoft Outlook Have?

Before detailing how Microsoft 365 and Microsoft Outlook do not meet HIPAA’s standards by default, let’s look at its security features:

1. Encryption and Data Protection

Microsoft 365 offers several encryption options, including:

TLS: Transport Layer Security (TLS) secures email in transit but does not encrypt emails at rest; if a recipient’s email server does not support TLS, messages may be sent in plaintext.
Office Message Encryption (OME): Office Message Encryption (OME) allows users to send encrypted messages, but it requires recipients to log in to a Microsoft account or use a one-time passcode. OME integrates with Microsoft 365’s Purview Message Encryption feature, which incorporates encryption, Do Not Forward, and rights management.
BitLocker Encryption: Encrypts data at rest within Microsoft’s cloud infrastructure.
Azure Information Protection: a cloud-based solution that allows users to classify, label, and protect data based on its sensitivity.

While these encryption methods provide some security, they lack the flexibility and automation needed to ensure consistent HIPAA compliance, especially for high-volume email campaigns.

2. Access Controls & Authentication

Microsoft 365 and Microsoft Outlook include access controls, such as role-based permissions and device management policies, and user authentication measures such as Multi-Factor Authentication (MFA). However, organizations must actively manage and enforce these policies to prevent breaches.

3. Audit Logging & Compliance Reporting

Microsoft provides audit logging and reporting tools via the Microsoft Purview Compliance Portal. These logs help organizations track access to ePHI, but proper configuration is required to ensure that HIPAA-required retention policies are met.

4. Business Associate Agreement

One of the distinguishing features of using Microsoft 365 and Microsoft Outlook is that the company will sign a Business Associate Agreement (BAA) with healthcare organizations. However, the Microsoft BAA only applies to specific Microsoft 365 services that meet HIPAA requirements, such as Outlook, Exchange Online, and OneDrive – while apps like Skype may not be covered.

This means healthcare organizations must carefully configure Microsoft 365 to use only HIPAA-covered services and apply security controls like encryption, access restrictions, and audit logging.

How Microsoft Outlook and Microsoft 365 Fall Short of HIPAA Regulations

Despite Microsoft 365 and Outlook’s comprehensive security features, out of the box, they still lack a series of capabilities and configurations that prevent them from being fully HIPAA-compliant.

No End-to-End Encryption: TLS protects emails in transit, but messages may be readable on recipient servers if they don’t support TLS, exposing ePHI.
Lack of Automatic Encryption: Microsoft 365 requires users to manually apply encryption settings for emails containing sensitive data, increasing the risk of human error and falling victim to data breaches.
Key management issues: healthcare organizations must rely on Microsoft’s encryption key management, rather than maintaining full control over their own keys.
Lack of recipient flexibility: OME requires recipients to authenticate via Microsoft accounts, which can be cumbersome for patients and other third-parties.
Limited DLP Enforcement: Outlook’s default settings don’t prevent ePHI from being sent unencrypted without proper data loss prevention (DLP) rules.
Audit Logging Gaps: while Microsoft 365 logs activity, they must be reviewed and retained properly to meet HIPAA guidelines.

To bridge these security gaps, healthcare organizations need an additional layer of protection.

In short, Microsoft 365 and Microsoft Outlook are not HIPAA-compliant out of the box, and healthcare companies should fully understand the implications and steps needed before using them for HIPAA compliant email communications and campaigns. However, unlike other leading email platforms, such as Mailchimp and SendGrid, they can be made HIPAA-compliant.

How LuxSci Makes Microsoft 365 and Microsoft Outlook Email HIPAA-Compliant

If your organization relies on Microsoft 365 or Microsoft Outlook for its email communications, LuxSci can streamline the process of making the platform HIPAA compliant – better-securing ePHI in the process and helping you avoid the consequences of a compliance shortfalls and a data breach..

LuxSci’s HIPAA compliant email features were specially designed with the security needs of healthcare organizations in mind, and include:

1. Automatic, End-to-End Email Encryption

LuxSci’s SecureLine™ encryption dynamically applies the strongest available encryption, including TLS, PGP and S/MIME, based on the recipient’s server’s security posture and capabilities, ensuring that every email remains secure without manual intervention, and reducing human error.

2. Seamless Integration with Microsoft 365

With LuxSci’s Secure Email Gateway, organizations can continue using Microsoft 365 and Microsoft Outlook for email, while benefiting from automated encryption, outbound email filtering, and advanced compliance logging, where logs are retained per HIPAA’s strict requirements.

3. Dedicated, HIPAA-Compliant Infrastructure

LuxSci offers dedicated email servers with full control over encryption keys, ensuring compliance with HIPAA and other data privacy regulations, such as GDPR and HITRUST. This is particularly important for organizations needing high-volume email security without performance bottlenecks.

4. Secure Patient Communication & Forms

Beyond email encryption, LuxSci provides Secure Forms and Secure Text, allowing healthcare providers, payers and suppliers to safely collect sensitive patient data and improve patient engagement and workflows.

Talk to Our Experts Today

If your organization relies on Microsoft 365 or Microsoft Outlook for email and wants to ensure full HIPAA compliance, schedule an intro call or demo with LuxSci today. Our experts will answer all your questions and help you implement a secure, high-performance email solution tailored to your needs.

Is the Email Encrypted? How to Tell if an Email is Transmitted Using TLS

January 9, 2024
LuxSci

SMTP TLS encryption is popular because it provides adequate data protection without creating a complicated user experience for email recipients. Sometimes, though, the experience is too seamless, and recipients may wonder if the message was protected at all.

Luckily, there is a way to tell if an email was encrypted using TLS. To see if a message was sent securely, we can look at the raw headers of the email. However, it requires some knowledge and experience to understand the text. It is actually easier to tell if a recipient’s server supports TLS than to tell if a particular message was securely transmitted.

To analyze a message for transmission security, we will look at an example email message sent from Hotmail to LuxSci. We will explain what to look for when decoding the message headers and how to tell if the email was transmitted using TLS encryption.

An Example Email Message

First, we must understand how an email message typically travels through several machines on its way from the sender to the recipient. Roughly speaking:

The sender’s computer talks to the sender’s email or WebMail server to upload the message.
The sender’s email or WebMail server then talks to the recipient’s inbound email server and transmits the message to them.
Finally, the recipient downloads the message from their email server.

It is step 2 that people are most concerned about when trying to understand if their email message is transmitted securely. They usually assume or check that everything is secure and OK at the two ends. Indeed, most users who need to can take steps to ensure that they are using SSL-enabled WebMail or POP/IMAP/SMTP/Exchange services so that steps 1 and 3 are secure. The intermediate step, where the email is transmitted between two different providers, is where messages may be sent insecurely.

To determine if the message was transmitted securely between the sender’s and recipient’s servers (over TLS), we need to extract the “Received” header lines from the received email message. If you look at the source of the email message, the lines at the top start with “Received.” Let’s look at an example message from a Hotmail user below. The email addresses, IPs, and other information are obviously fake.

LuxSci:

The Outlook email was sent to a LuxSci user. The Received headers appear in reverse chronological order, starting with the server that touched the message last. Therefore, in this example, we see the LuxSci servers first.

Received: from abc.luxsci.com ([1.1.1.1])
	by def.luxsci.com (8.14.4/8.13.8) with ESMTP id r7JEfLgH003867
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT)
	for <user-xyz@def.luxsci.com>; Mon, 19 Aug 2019 10:41:21 -0400
Received: from abc.luxsci.com (localhost.localdomain [127.0.0.1])
	by abc.luxsci.com (8.14.4/8.13.8) with ESMTP id r7JEfK0Z030182
	for <user-xyz@def.luxsci.com>; Mon, 19 Aug 2019 09:41:20 -0500
Received: (from mail@localhost)
	by abc.luxsci.com (8.14.4/8.13.8/Submit) id r7JEfKXD030178
	for user-xyz@def.luxsci.com; Mon, 19 Aug 2019 09:41:20 -0500

Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [2.2.2.2])
	by abc.luxsci.com (8.14.4/8.13.8) with ESMTP id r7JEfIkK030002
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT)
	for <someone@luxsci.net>; Mon, 19 Aug 2019 09:41:19 -0500

Proofpoint:

LuxSci uses an email filtering service, Proofpoint. Messages reach Proofpoint’s servers before being delivered to LuxSci. Here’s what their servers report about the email transmission:

Received: from unknown [65.54.190.216] (EHLO bay0-omc4-s14.bay0.hotmail.com)
	by dispatch1-us1.ppe-hosted.com.ppe-hosted.com
        (envelope-from <someone@hotmail.com>);
	Mon, 19 Aug 2019 08:41:18 -0600 (MDT)

Outlook:

And finally, here’s what we see from Oultook’s server.

Received: from BAY403-EAS373 ([65.54.190.199]) by bay0-omc4-s14.bay0.outlook.com
       with Microsoft SMTPSVC(6.0.3790.4675); 
       Mon, 19 Aug 2019 07:41:19 -0700

How to Use Received Message Headers to Tell if the Email is Encrypted

The message headers contain information that can help us determine if an email is encrypted. Here are a few helpful notes to help you decode the text:

We said this above, but the message headers appear in reverse chronological order. The first one listed shows the last server that touched the message; the last one is the first server that touched it (typically the sending server).
Each Received line documents what a server did and when.
There are three sets of servers involved in this example: one machine at Hotmail, one machine at Proofpoint, where our Premium Email Filtering takes place, and some machines at LuxSci, where final acceptance of the message and subsequent delivery happened.

Presumably, the processing of email within each provider is secure. The place to be concerned about is the hand-offs between Hotmail and Proofpoint and between Proofpoint and LuxSci, as these are the big hops across the internet between providers.

In the line where LuxSci accepts the message from Proofpoint, we see:

(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT)

This section, typical of most email servers running “sendmail” with TLS support, indicates that the message was encrypted during transport with TLS using 256-bit AES encryption. (“Verify=not” means that LuxSci did not ask Proofpoint for a second SSL client certificate to verify itself, as that is not usually needed or required for SMTP TLS to work correctly). Also, “TLSv1/SSLv3” is a tag that means that “Some version of SSL or TLS was used;” it does not mean that it was SSL v3 or TLS v1.0. It could have been TLS v1.2 or TLS v1.3.

So, the hop between Proofpoint and LuxSci was locked down and secure. What about the hop between Hotmail and Proofpoint? The Proofpoint server’s Received line makes no note of security at all! This means that the email message was probably not encrypted during this step.

Hotmail either did not support opportunistic TLS encryption for outbound emails, or Proofpoint did not support receipt of messages over TLS, and thus, TLS could not be used. With additional context, you can know which server supports TLS and which does not.

In this case, we know that Proofpoint supports inbound TLS encryption. In fact, from another example message where LuxSci sent a message to Proofpoint, we see the Received line:

Received: from unknown [44.44.44.44] (EHLO wgh.luxsci.com)
	by dispatch1-us1.ppe-hosted.com.ppe-hosted.com
        (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	with ESMTP id b-022.p01c11m003.ppe-hosted.com
        (envelope-from <from@domain.com>);
	Mon, 02 Feb 2009 19:28:27 -0700 (MST)

The red text makes it clear that the message was indeed encrypted. Based on the additional context, we can deduce that the Hotmail sending server did not securely transmit the email using TLS.

How To Tell if an Email is Encrypted With TLS

When analyzing your message headers, consider the following items to determine if the email is encrypted:
1. The receiving server will log what kind of encryption, if any, was used in receiving the message in the headers.
2. Different email servers use different formats and syntax to display the encryption used. Look for keywords like “SSL,” “TLS,” and “Encryption,” which will signify this information.
3. Not all servers will record the use of encryption. While LuxSci has always logged encryption use, not every email service provider does. It is possible to use TLS encryption and not log it. Sometimes, there is no way to tell from the headers if a message is encrypted if it is not logged.
4. Messages passed between servers at the same provider do not necessarily need TLS encryption to be secure. For example, LuxSci has back-channel private network connections between many servers so that information can be securely passed between them without SMTP TLS. So, the lack of TLS usage between two servers does not mean the transmission between them was “insecure.” You may also see multiple received lines listing the same server: the server passes the message between different processes within itself. This communication also does not need to be TLS encrypted.
5. If you are a LuxSci customer, you can view online email delivery reports to see if TLS was used for any particular message. We record the kind of encryption in the delivery reports, so it’s easy to see which emails were encrypted.

How can you Ensure Emails Are Securely Transmitted?

With some servers not recording TLS in message headers, how can you determine if a message was transmitted securely from sender to recipient?

To answer this question accurately, you must understand the properties, servers, and networks involved. It may be easy to determine that the message was transmitted securely if included in the header information. However, the absence of information does not necessarily mean the message was insecurely transmitted. You can only know this if you know what each system’s servers record.

In our example of a message from Hotmail to LuxSci, you need to know that:

Proofpoint and LuxSci will always log the use of TLS in the headers. We can infer that the Hotmail to Proofpoint transmission was not secure as nothing was recorded there.
The transmission of messages within LuxSci’s infrastructure is secure due to private back channel transmissions. So, even though there is no mention of TLS in every Received line after LuxSci accepts the message from Proofpoint (in this example), transferring the messages between servers in LuxSci is as secure as using TLS. Also, the same server can add multiple received lines as it talks to itself. Generally, these hand-offs on the same server will not use TLS, as there is no need. In the LuxSci example, we see this as “abc.luxsci.com” adds several headers.
We don’t know anything about Hotmail’s email servers, so we don’t know how secure the initial transmissions within their network are. However, since we know they did not securely transmit the message to Proofpoint, we are not confident that the transmissions and processing within Hotmail (which may have gone unrecorded) were secure.

Was the email message sent and received using encryption?

We skipped steps 1 and 3 and focused on step 2 – the transmission between servers. Steps 1 and 3 are equally, if not more, necessary. Why? Because eavesdropping on the internet between ISPs is less of a problem than eavesdropping near the sender and recipient (i.e., in their workplace or local wireless hotspot). So, it’s essential to ensure messages are sent securely and received securely. This means:

Sending: Use SMTP over SSL or TLS when sending messages from an email client or use WebMail over a secure connection (HTTPS).
Receiving: Ensure your POP or IMAP connection is secured via SSL or TLS. If using WebMail to read your email, be sure it is over a secure connection (HTTPS).
WebMail: There is generally no record in the email headers to indicate if a message sent using WebMail was transmitted from the end-user to WebMail over a secure connection (SSL/HTTPS).

You can typically control one side and ensure it is secure; you can’t control the other without taking extra steps. So, what can you do to ensure your message is secure even if it might not be transmitted with encryption or if the recipient tries to access it insecurely?

You could use end-to-end email encryption (like PGP or S/MIME, which are included in SecureLine) or a secure web portal that doesn’t require the recipient to install or set up anything to get your secure email message. These methods meet HIPAA and other regulatory compliance requirements for secure data transmission and provide complete confidence that the message will be sent and received securely.

LuxSci’s SecureLine offers flexible encryption options, including TLS, secure web portal, PGP, and S/MIME. Its dynamic capabilities can determine what types of encryption the recipient’s server supports to ensure your emails are always sent securely. Contact our team today to learn more about how to secure your emails.