LuxSci

LuxSci Receives Majority Investment from Main Capital Partners

luxsci and main capital logos

Main Capital Partners announces a majority investment in Lux Scientiae, Incorporated (‘LuxSci’), a leading provider of healthcare-focused secure communications and secure hosting solutions. The investment reflects Main’s commitment to the healthcare market and desire to build robust, international software groups.

Founded in 1999, LuxSci is a leading American provider of HIPAA-compliant secure communications and secure hosting solutions. LuxSci’s application and infrastructure software enables organizations to securely deliver personalized sensitive data at scale. Certified by HITRUST to support customers with HIPAA compliance requirements, LuxSci serves dozens of healthcare enterprises and hundreds of middle-market organizations. Customers include providers, healthcare IT firms, medical device manufacturers, and companies active in other highly regulated industries.

With the strategic support of Main, LuxSci will strengthen its market position and its capabilities to meet the complex needs of modern healthcare organizations. In addition to fostering organic growth in the North American market, LuxSci and Main will explore opportunities for strategic acquisitions to expand the product portfolio and accelerate internationalization.

Erik Kangas (PhD), Founder & CEO of LuxSci, expressed his enthusiasm for the partnership, stating: “Having led LuxSci through 23 profitable bootstrapped years, I am extremely excited to partner with Main. Their resources and expertise will enable us to expand our technology and deepen our market penetration at a time when the demand for high-security communications solutions has never been greater.”

Jeanne Fama (PhD, MBA), COO & CSO of LuxSci, adds: “We are excited about the partnership’s potential to increase the awareness and adoption of LuxSci’s communication solutions and potentiate their impact in healthcare organizations seeking to improve clinical and business outcomes and increase patient satisfaction and loyalty.”

Main has demonstrated strong performance in both the healthcare and security markets, evidenced by investments such as Enovation (connected care solutions with over 350 employees across Europe) and Pointsharp (security and identity access management software with over 200 employees in Northwestern Europe). Main will leverage its experience and network in these markets to support LuxSci in its continued growth.

Daan Visscher, Co-Head of Main Capital North America, concludes: “We are thrilled to partner with the LuxSci team in spearheading the company’s next phase of growth. We are impressed by LuxSci’s double-digit recurring revenue growth, the underlying product, the management team’s capabilities, and the unwavering commitment to customers. We see ample opportunities to drive value through honing operational excellence, accelerating organic growth, and executing select strategic acquisitions. The result will be a robust, international software group positioned to meet the evolving needs of healthcare organizations.”

Pagemill Partners, the tech investment banking division of Kroll, served as financial advisor to LuxSci and Cooley LLP acted as legal advisor to LuxSci. Morse, Barnes-Brown & Pendleton, PC acted as legal advisor to Main.

About LuxSci

LuxSci is a leading provider of highly scalable secure communications and secure hosting solutions. Certified by HITRUST, LuxSci helps organizations navigate complex HIPAA regulations and safeguard sensitive data. LuxSci serves nearly 2,000 customers across healthcare and other highly regulated industries.

About Main Capital Partners

Main Capital Partners is a leading software investor active in Northwestern Europe and North America. Main has over 20 years of experience in software investing and works closely alongside management teams to achieve sustainable growth. Main has 70 employees operating out of its offices in The Hague, Stockholm, Düsseldorf, Antwerp, and Boston. Main has over EUR 2.2 billion in assets under management and maintains an active portfolio of over 40 software groups. The underlying portfolio employs over 12,000 employees.

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HIPAA Security Rule Email Encryption Requirements

HIPAA Compliant Email

Your Email Platform Is Becoming Critical Healthcare Infrastructure

Most healthcare organizations view email as a utility, a necessary tool for sending messages between staff, communicating with patients, sending out newsletters, connecting workflows, and so on. Historically, IT teams focused on keeping it running, security teams worried about phishing, and compliance teams made sure sensitive emails were encrypted.

Today, however, that view is rapidly becoming outdated.

Email has evolved into one of healthcare’s most critical digital infrastructure components, and also one of it’s biggest security threats. It’s a core channel for patient engagement, care coordination, revenue cycle operations, digital marketing, remote monitoring, and increasingly, AI-powered communications. The organizations that recognize this shift are building communications platforms designed for security, performance, automation, and growth. With the new HIPAA Security Rule requiring email encryption on the horizon, those companies that don’t may find themselves constrained by systems that were never intended to support modern healthcare.

Email Is No Longer Just a Messaging Tool

Healthcare organizations now depend on email to support dozens of mission-critical workflows every day.

Patients receive appointment reminders, registration instructions, imaging results, billing notifications, Explanation of Benefits (EOBs), prescription updates, preventive care reminders, patient education, and post-discharge follow-up.  Marketing teams deliver personalized wellness campaigns and service line promotions. Clinical systems generate transactional notifications. Revenue cycle teams rely on secure digital communications to accelerate payments and reduce paper costs.

For many organizations, mission-critical patient communications flow through email every month.

When viewed collectively, email is more than a simple communications channel. It has become operational infrastructure with high levels of security needed and increasing compliance requirements.

The Stakes Continue to Rise

As healthcare becomes more digital, every communication carries greater business and clinical importance.

A delayed billing email may postpone payment. A failed appointment reminder can increase no-show rates. An undelivered care management message may impact patient outcomes. A misconfigured security policy can expose protected health information (PHI). Poor deliverability can undermine expensive patient engagement initiatives before they ever reach the inbox.

These are no longer isolated IT issues. Email can affect revenue, patient satisfaction, operational efficiency, compliance, and organizational reputation.

Today’s healthcare leaders require email infrastructure to provide the same reliability and visibility they demand from electronic health records, identity management systems, and other core infrastructure.

AI Is Raising the Bar Even Higher

There’s little doubt that artificial intelligence (AI) promises to transform patient communications.

Healthcare organizations everywhere are exploring AI-generated patient education, personalized outreach, intelligent scheduling, multilingual communications, and automated follow-up programs.

But AI also increases the importance of the underlying communications infrastructure.

Generating more personalized emails means little if organizations cannot:

  • Automatically protect PHI.
  • Apply consistent security policies.
  • Maintain complete audit trails.
  • Deliver messages reliably.
  • Integrate with EHRs, RCM and CRM platforms, and customer data platforms.
  • Demonstrate compliance during an audits.

In many ways, AI amplifies both the opportunities and the risks. Your email platform can help determine whether AI initiatives succeed or create new compliance and operational challenges.

Infrastructure Matters More Than Features

Healthcare buyers have traditionally evaluated email platforms based on individual features such as encryption, spam filtering, or secure portals.

Those capabilities remain important, but they no longer tell the whole story.

Today’s healthcare organizations should be evaluating communications platforms the same way they evaluate any mission-critical infrastructure.

Questions increasingly include:

  • Can it support both transactional and marketing communications?
  • Does it automatically enforce security policies without relying on user decisions?
  • Can it integrate with EHRs, CRM systems, CDPs, and business applications?
  • Will it scale during peak communication periods?
  • Does it provide detailed audit logging and reporting?
  • Can it adapt as regulatory expectations evolve?
  • Does it maintain high deliverability at enterprise scale?
  • Does it support single-tenant dedicated infrastructure for high performance and increased security?

These infrastructure characteristics often determine long-term success far more than any single feature comparison.

Email and the Future Of Secure Healthcare Communications

Healthcare is steadily moving toward a world where nearly every patient interaction is digital, personalized, and data-driven.

Healthcare leaders often ask whether they need a more secure email solution. That may be the wrong question.

The better question is whether their communications infrastructure is ready for where healthcare is headed over the next decade.

If you want talk about the future of your healthcare email infrastructure, reach out today and schedule a 30-minute assessment call with our experts.

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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.

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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.

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G2 Reports

LuxSci Earns 11 Badges in G2 Fall 2025 Reports, Including Best Support and Momentum Leader

We’re happy to share that LuxSci has once again been recognized for excellence in the G2 Fall 2025 Reports! Based entirely on verified customer reviews, LuxSci earned 11 G2 badges this season, highlighting our continued commitment to providing exceptional support, driving ROI for our customers, and delivering the best products.

 

From Best Estimated ROI to Momentum Leader, our performance on G2 is a direct reflection of the trust and success of our customers. Let’s take a closer look at what these new accolades mean and why they matter.

What Is G2 and Why Does It Matter?

G2.com is a trusted platform for peer-to-peer business software reviews. G2 publishes quarterly reports that analyze software companies based on verified customer feedback and real-world performance data. For the latest G2 reports, we’re honored to have earned 11 badges for Fall 2025.

Here’s What LuxSci Earned in Fall 2025

LuxSci was awarded a total of 11 badges across multiple categories. These honors reflect customer satisfaction, platform momentum, return on investment, and the quality of support we provide.

LuxSci’s G2 Fall 2025 Badges include:

 

  • Best Support (Secure Email Gateway)
  • Easiest Admin (Email Security)
  • Best Estimated ROI (Email Security)
  • Best Meets Requirements (Secure Email Gateway)
  • Momentum Leader (Multiple Categories)
  • High Performer (Email Encryption)
  • High Performer (Secure Email Gateway)
  • High Performer (Email Security)
  • Users Most Likely to Recommend (Secure Email Gateway)
  • Easiest To Do Business With (Email Encryption)
  • Easiest Setup (Email Encryption)

Why These Badges Matter

Let’s break down a few of the key categories and why they’re worth calling out:

Best Support

This badge shows we’re not just responsive—we’re reliable, helpful, and proactive. Our support team works around the clock to ensure customers feel heard and empowered. It’s a core part of our offering and overall customer experience.

Momentum Leader

This badge is awarded to companies showing significant growth in customer satisfaction, web presence, and employee growth. It means we’re not standing still—we’re scaling smartly, with our customers and partners in mind.

Best Estimated ROI

This one’s big. It means LuxSci offers exceptional value. Customers see real results that justify the investment. This includes secure email with 98% deliverability rates that truly drive better engagement for your healthcare communications and campaigns.

Built for Security and Compliance

At LuxSci, we don’t just build HIPAA compliant, enterprise-grade secure email and marketing tools—we build trusted relationships with our customers and partners. Our focus continues to be:

 

  • Protecting sensitive data with the highest levels of security and compliance
  • Building the best products, so customers have peace of mind
  • Providing unmatched customer support, every step of the way

We’re Not Slowing Down Anytime Soon

With security threats constantly evolving and compliance demands increasing, the need for secure, HIPAA compliant email and communications has never been greater. Whether you’re in healthcare, or regulated industries like financial services, LuxSci is here to ensure your communications stay secure, high-performing, and supported.

 

We’re proud to serve a growing base of professionals who rely on LuxSci every day to keep their sensitive data secure. Want to see what the buzz is about?

 

Explore LuxSci on G2

 

Contact us today to see how we can help you!

HIPAA Compliant Email

Here’s What HIPAA Compliant Email Salespeople Don’t Tell You

With email security threats continuously increasing in number and sophistication, as well as healthcare companies requiring secure solutions to communicate with patients and customers, the need for HIPAA compliant email solutions has never been greater. 

However, when looking for the right secure email services provider (ESP), healthcare organizations run the risk of making inaccurate assumptions about HIPAA compliance via what they learn from prospective vendors. This is due to the tendency for sales materials for HIPAA compliant email services, such as web pages or promotional videos, to highlight the strengths of the platform, while downplaying a healthcare company’s own role and responsibilities in securing protected health information (PHI). 

With this firmly in mind, here are six key things that HIPAA compliant email salespeople don’t tell you about securing communications and achieving compliance. 

1. The Shared Responsibility Model

Firstly, HIPAA compliant email salespeople are unlikely to emphasize the idea of shared responsibility when it comes to data security. This is the idea that two entities that share access to data, e.g., a healthcare company and their ESP, have a shared responsibility to preserve the privacy of that data.

In reality, most sales pitches explain the benefits and features of the solution, as opposed to stressing that compliance truly depends on how it’s configured and used. Now, that’s not to say that a salesperson is trying to hide this fact, as they’ll probably allude to training and configuration requirements. But, they’ll be less likely to make light of this and, more broadly, how shared responsibility factors into compliance.

2. A BAA Doesn’t Automatically Make You HIPAA Compliant

A business associate agreement (BAA) is essential for HIPAA compliance, but signing one doesn’t automatically make you compliant. Your organization still has to use the email delivery solution in a way that aligns with HIPAA regulations, which involves proper configuration, training, oversight, and reporting.

The misconception among some healthcare companies that a BAA equals compliance may be perpetuated by the term “HIPAA compliant email services provider”.  This could give some the impression that the vendor is fully HIPAA compliant and, subsequently, in signing a BAA with them, the use of their services is fully compliant.

But, it’s not that simple.

Simply signing a BAA obscures the real effort involved in achieving compliance. There’s no official HIPAA seal of approval, and HIPAA compliant means that the solution is capable of being configured for compliant use, which is a shared responsibility. HIPAA compliant email salespeople are unlikely to volunteer this nuance, especially if their email solution requires considerable configuration or has a steep learning curve to use it securely.

3. Not All Solutions or Features Are HIPAA Compliant

Another key detail often underplayed by vendor sales materials of HIPAA compliant email solutions is that some of their features, or even entire services, aren’t covered by their BAAs, so they can’t be used to handle PHI. 

These tools are referred to as “out of scope” and may include tools capable of integration with the email service, such as analytics or AI capabilities, but they don’t possess the cyber risk mitigation measures that align with HIPAA regulations. Perhaps the main reason for this is that many mass-market email delivery solutions, such as Microsoft 365 or Google Workspace, are designed for companies across all sectors. Consequently, while they can be HIPAA compliant, they weren’t developed from the ground up with the stringent regulatory demands of the healthcare industry in mind.

4. Solutions Are Not HIPAA Compliant “Out of The Box”

HIPAA compliant email salespeople may suggest that compliance is built into their platform, and healthcare organizations can use it to transmit PHI straight away, but this isn’t the case. Healthcare companies must still configure the email platform accordingly, as per the security requirements determined by their risk assessment, e.g., applying the right level of encryption. 

Also, if the email service is difficult to configure for HIPAA compliance or if the vendor’s configuration documentation lacks detail, that presents another obstacle to its compliant use. 

In addition to configuration, healthcare companies also have to implement access management controls and policies, establishing the extent to which each employee can access PHI in respect to their roles and responsibilities. From there, they will have to train their workforce on how to use the HIPAA compliant email solution securely, which may include those tools that fall outside the scope of your BAA with the vendor, and must not be used for the disclosure of patient data.

5. Essential Security Features Cost Extra 

Another more egregious version of an ESP not being HIPAA compliant out of the box is having features required for compliance, such as encryption or audit logging, as premium add-ons and not included in the solution’s base pricing. 

A vendor’s sales materials for its email service might list the necessary safeguards, but underemphasize the fact that only some versions of their platform are truly HIPAA compliant. Consequently, healthcare companies must confirm that the features required for HIPAA compliant email communications are included in the plan they’re purchasing. 

6. The Importance of Staff Training on HIPAA

HIPAA compliant email salespeople are often remiss in stressing the need for additional workforce training alongside the deployment of their platform. A healthcare company’s employees must be trained on how to securely use the email client, how to ID potential threats, and best practices for including PHI in email communications, as well as the regulations tied to HIPAA and data security.

This includes educating users on the differences between regular and secure email, and what they must do to safeguard patient and customer data. Fortunately, secure email solutions from providers like LuxSci enable automated email encryption, and users do not need to take any additional actions to ensure encryption when sending emails.

Additionally, in some cases, employees will need to be trained on which tools or features do not align with HIPAA guidelines and must not be used to process PHI.

LuxSci: Fully HIPAA Compliant – No Hidden Surprises

LuxSci specializes in solutions that enable companies to carry out secure, personalized, and HIPAA compliant email communications and campaigns. With more than 20 years of experience and billions of emails sent for companies including Athenahealth, 1 800 Contacts, Lucerna Health and Rotech Healthcare, we’ve acquired invaluable experience in helping healthcare organizations enhance their engagement efforts, all while adhering to HIPAA regulations. In addition, LuxSci’s secure high-volume and marketing email solutions feature HIPAA-required security controls, including encryption, audit logging, and multi-factor authentication (MFA) by default, not as optional, hidden extras.

Contact us today to learn more about how LuxSci’s secure email solutions can help increase the ROI on your patient and customer outreach efforts, while safeguarding PHI in line with HIPAA requirements.

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.

MailHippo HIPAA compliant

Is Mailhippo HIPAA Compliant?

MailHippo is considered HIPAA compliant when healthcare providers use a paid plan or 30-day free trial, sign a BAA, and enable the required security settings. As a result, MailHippo HIPAA compliant usage is only possible when all of these conditions are met. The cloud-based encrypted email service provides secure messaging for healthcare providers handling PHI, though considerations should be made in areas such as administrative controls, audit logging, and integration options. Healthcare providers considering MailHippo for patient communications should examine its security capabilities alongside potential workflow capabilities before making a decision on implementation.

Email Security Requirements Under HIPAA

Healthcare email systems handling PHI must satisfy federal privacy regulations through encryption, access controls, and audit capabilities. Data encryption during transmission prevents unauthorized interception of patient information traveling across public networks. Storage encryption protects archived messages containing health data while they reside on email servers. Access restrictions ensure that only authorized personnel can view patient communications relevant to their job responsibilities.

Audit controls track who accesses email systems, what messages they view, and when these activities occur. Integrity safeguards prevent unauthorized modification or deletion of patient communications that might compromise medical records or compliance evidence. Business associate agreements create legal frameworks defining how email service providers protect patient information and respond when security incidents occur.

Consumer email platforms lack typically these protections in their standard configurations, creating compliance vulnerabilities when healthcare providers use them for patient communications. For example, Gmail, Outlook, and Yahoo Mail were designed for general business use rather than regulated healthcare environments. To summarize, healthcare organizations benefit from email services that implement HIPAA security requirements by design rather than requiring complex manual configurations that might be implemented incorrectly.

The MailHippo Service Model

MailHippo positions itself as a straightforward encrypted email solution for professionals in regulated industries including healthcare, legal, and financial services. The cloud-based platform eliminates time-consuming software installation requirements, allowing users to send secure messages through web browsers without downloading applications. This simplicity appeals to solo practitioners and small medical practices that lack dedicated IT support staff.

Independent healthcare providers, small medical offices, mental health professionals, and insurance consultants represent the service’s primary user base. These smaller operations value ease of use over advanced features, preferring solutions that deliver basic security without complicated setup and user procedures. It’s important to note that MailHippo delivers encrypted messages to recipients through secure web portals rather than standard email clients, creating protected communication channels that don’t require recipients to install special software.

The MailHippo service model focuses on one-to-one secure messaging rather than bulk communications or automated workflows. Healthcare providers send individual messages to patients or colleagues through encrypted channels that protect information during transmission and storage. Recipients receive notifications that secure messages await them in web portals where they can view content after authentication. This approach works for routine patient communications but may not support more complex healthcare communication needs. For larger organizations that prefer users staying within a dedicated email application or need high volume sending, several HIPAA compliant alternatives exist, including LuxSci.

MailHippo’s HIPAA Compliant Encryption and Security Features

MailHippo features transport encryption using TLS protocols, protecting messages during transmission between email servers, and preventing interception while communications travel across networks. AES-256 encryption secures stored messages, ensuring that archived communications remain protected if servers are compromised. The combination of transmission and storage encryption addresses HIPAA requirements for protecting ePHI throughout its lifecycle.

Recipient access through secure web portals eliminates the vulnerabilities associated with delivering encrypted content through standard email clients. Patients and healthcare providers authenticate themselves before viewing message content, creating additional security layers beyond basic encryption. Using a portal-based approach reduces exposure through compromised email accounts or insecure devices that might not maintain proper security configurations.

Authentication requirements mandate that users log in before sending or receiving messages, preventing unauthorized access to patient communications. MailHippo supports two-factor authentication (2FA), but the company’s documentation doesn’t clearly spell out which MFA methods are available or whether organizations can enforce MFA for all users. Healthcare entities that require strong authentication factors, such as hardware tokens or biometrics should confirm these details directly with the vendor.

Delivery and read receipts provide tracking information about message transmission and recipient access. These receipts confirm that messages reached intended recipients and document when recipients viewed content. The tracking capabilities, while useful for confirming communication delivery, lack the detailed audit logging that larger healthcare organizations likely need for compliance and security investigations.

Third-Party Email Provider Contract Requirements

Federal regulations classify email service providers handling PHI as business associates subject to HIPAA compliance obligations. Healthcare entities must execute written agreements with these providers defining responsibilities for protecting patient data and responding to security incidents. Without signed BAAs, email communications containing patient information violate HIPAA regardless of encryption or other security measures implemented.

MailHippo HIPAA compliant email requires executed business associate agreements between the service provider and healthcare organizations. MailHippo indicates that it provides a HIPAA Business Associate Agreement (BAA) as part of its service offerings; organizations should confirm BAA availability and execution terms before transmitting protected health information.

Business associate agreements specify encryption standards, incident notification timelines, and procedures for handling patient data when service relationships terminate. These contracts allocate liability between healthcare organizations and email providers, protecting organizations from financial exposure when security breaches that result from provider negligence. Agreement terms should address data retention requirements, geographic restrictions on information storage, and secure deletion methods when retention periods expire.

Healthcare organizations implementing MailHippo HIPAA compliant solutions must verify that executed agreements cover all anticipated uses of the platform. Agreements should explicitly permit transmission and storage of PHI while defining what security measures the provider maintains. Without proper agreements in place, healthcare organizations assume full liability for any security incidents involving patient communications transmitted through the platform.

Administrative Control & Potential Limitations

User management capabilities determine how healthcare organizations control access to email systems and enforce security policies across multiple staff members. Role-based permissions enable organizations to grant different access levels to physicians, nurses, administrative staff, and billing personnel based on their job functions. Centralized administration consoles allow IT staff or practice managers to oversee all user accounts, modify permissions, and review security concerns from a single interface.

MailHippo HIPAA compliant implementations may lack the administrative tools that larger healthcare organizations require, including managing large numbers of users. The platform does not provide role-based permission structures that restrict access based on job functions or patient care relationships. Centralized dashboards for overseeing user activities across organizations are absent, making it more difficult for administrators to monitor security compliance or identify potential policy violations.

Integration & Workflow Considerations

Healthcare communication workflows rely heavily on integration between email systems, electronic health records, practice management software, and patient engagement platforms. Automated workflows reduce administrative burden while ensuring consistent security practices across all patient communications. API connectivity enables different healthcare applications to exchange information seamlessly without requiring manual data transfer, which increases the risk of human error.

While MailHippo publishes an email API, it does not offer ‘out-of-the-box’ integration capabilities with electronic health record systems or practice management platforms. As a result, healthcare organizations cannot automatically populate patient communications with appointment information, test results, or treatment updates from their clinical systems without technical integration work.

Marketing automation and bulk communication capabilities do not exist within the MailHippo service model, which is designed for individual message transmission. Healthcare organizations conducting patient outreach, appointment reminders, or health education campaigns need alternative solutions for these activities. The focus on one-to-one messaging limits the platform’s utility for organizations with diverse communication requirements high-volume sending needs beyond routine secure messaging.

Appropriate Use Cases and Organizational Fit

Solo practitioners and small medical practices with straightforward communication needs represent ideal candidates for MailHippo HIPAA compliant email. These organizations likely value simplicity over advanced features, preferring solutions that deliver basic security without requiring technical expertise to configure and maintain. Single physicians or therapists communicating with individual patients benefit from the portal-based secure messaging that protects patient information without complicated setup procedures.

Healthcare providers requiring only basic one-to-one secure messaging without forms, complex integrations, or user management can operate effectively within the platform’s capabilities. For example. mental health professionals conducting therapy practices, independent consultants providing healthcare advice, and small specialty clinics with limited communication volumes fit the service model well.

Larger healthcare organizations, multi-location practices, and operations with complex communication requirements and workflows will find the platform’s limitations constraining. Organizations needing multiple user tiers, departmental segregation, or centralized administration lack the tools necessary for managing these structures. Healthcare systems requiring electronic health record integration, automated workflows, or bulk communication capabilities often need more comprehensive email security platforms than MailHippo HIPAA compliant setups can provide.

Implementation and Compliance Verification

Now, it’s important to note that healthcare organizations implementing secure email must verify that all HIPAA requirements are satisfied before transmitting PHI. Proper configuration helps ensure that encryption activates properly, access controls function as intended, and audit logging captures necessary security events. In addition, business associate agreement execution creates legal frameworks before any patient data flows through email systems.

As with any ESP for healthcare, organizations adopting MailHippo HIPAA compliant email should document their compliance measures, including executed agreements, security configurations, and staff training records. Documentation demonstrates due diligence during regulatory audits while providing evidence that organizations took appropriate steps to protect patient information. Policy development establishes guidelines about what information can be transmitted via email and what alternative communication methods should be used for particularly sensitive content.

Staff training prepares healthcare workers to use secure email systems properly while maintaining patient privacy throughout communications. Training should cover portal access procedures, recipient verification methods, and appropriate content guidelines that prevent inadvertent disclosures. Documented training records prove that organizations educated staff about security requirements before granting email system access.

Finally, periodic security assessments verify that email systems continue meeting compliance requirements as technology and threats evolve. Assessment schedules should include configuration reviews, access control testing, and verification that business associate agreements remain current. Healthcare organizations relying on MailHippo HIPAA compliant workflows must treat email security as an active process rather than a one-time setup, maintaining vigilance about vulnerabilities and regulatory changes.

If you’d like to learn more, reach out to us today!