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

Business Solutions, HIPAA Compliant Email, HIPAA Email Marketing
LuxSci
January 9, 2024

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.

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LuxSci High Email Deliverability Best Practices Paper

What you’ll learn:

HIPAA Security Rule Email Encryption Requirements

July 8, 2026
Tom Deeb

Your Email Platform Is Becoming Critical Healthcare Infrastructure

July 1, 2026
Pete Wermter

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

June 9, 2026
Pete Wermter

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.

LuxSci Awarded 20 Badges in the G2 Summer 2026 Reports

May 28, 2026
Pete Wermter

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

The new LuxSci G2 recognitions span several categories, including:

Best Estimated ROI
Best Support
High Performer
Leader

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

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

Recognition Built on Customer Experience

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

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

Among the highlights, the LuxSci G2 recognition includes:

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

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

Supporting the Future of Personalized Healthcare Engagement

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

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

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

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

Thank You to Our Customers

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

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

Connect with us today!

How To Overcome Email Encryption Challenges in Healthcare

April 14, 2025
Pete Wermter

Encryption is a critical security measure for protecting electronic protected health information (ePHI) included within email communications, and a key technical safeguard under the HIPAA Security Rule. However, despite its efficacy in helping protect sensitive patient data from malicious actors, encryption can be difficult to successfully implement.

Technical complexity, user resistance, and compatibility issues across different email systems can emerge as persistent problems, leading to frustration, risky workarounds, and, ultimately, increased risk of ePHI exposure and compliance violations. Without thoughtful deployment and support, encryption can become a barrier to successful secure email communication in healthcare, as opposed to a measure that underpins it.

To help you ensure secure, HIPAA compliant email communication, this post discusses the main encryption challenges you’re likely to encounter, how they can diminish your email security posture, and the measures you can take to overcome them.

What Is Email Encryption?

Before we discuss the most frequent email encryption challenges faced by healthcare organizations, here’s a quick refresher on what email encryption is and why it’s so important for securing sensitive patient data.

Email encryption is the process of scrambling the content of a message to make it unreadable as it’s sent to recipients or stored in a database. Only the intended recipient, who has the encryption key, can decrypt the email and access the data within.

Consequently, in the event an encrypted message is intercepted by malicious actors in transit or exfiltrated from a data store during a security breach, they won’t be able to make sense of it. This renders any ePHI included in the message unintelligible and, therefore, worthless, adding another layer of security that preserves patient privacy – and keeps your business safe.

Common Email Encryption Challenges

Let’s move on to detailing some of the most frequent encryption challenges that must be overcome by healthcare organizations to ensure secure email communication and HIPAA compliance.

Decrypting Messages Is Too Difficult

The more difficult or drawn out it is for recipients to decrypt their email messages, the more likely they’ll simply go unread or end up deleted. If the decryption process is too cumbersome, which could include requiring a user to log into a separate site (i.e., a web portal), verify their identity multiple times, create a new account, or install additional software, it adds complexity. This can drive users to seek workarounds or cut corners, such as having information sent to them through unsecured channels, which puts your company at risk.

Similarly, email clients, browsers, and security settings may impact the decryption process, causing compatibility issues that prevent users from accessing their messages. Within a healthcare setting, where timely communication is crucial, such obstacles can disrupt workflows, slow down patient care, and lead to HIPAA compliance violations if users resort to unencrypted alternatives.

Encryption that Requires Manual Intervention

Some email encryption tools require users to manually encrypt messages. If users forget to apply encryption or misconfigure settings, sensitive patient data could be exposed, leading to compliance violations and ePHI exfiltration.

For employees who handle ePHI and need to send encrypted emails, remembering to enable encryption (vs. automated encryption) is an extra step that introduces the risk of human error into the process. To offer a related, and more relatable, example: how many times have you forgotten to include an attachment when sending an email, even when referencing the attachment in the message? It’s all too easily done. In the same way, an inexperienced, tired, or distracted user could simply neglect to turn on or correctly configure encryption before sending an email, putting patient data at risk.

Increased IT and Administrative Overhead

The two email encryption challenges outlined above contribute to a third overarching difficulty for healthcare organizations: an increased workload for its IT, security and operations teams.

First of all, IT, security and operations must establish and continuously enforce encryption policies, configuring rules that ensure sensitive patient data is encrypted while non-sensitive, business communication continues to flow unobstructed. Misconfigured policies can cause over-encryption, resulting in user inaccessibility and disruptions, or under-encryption, leading to exposure of ePHI and HIPAA compliance violations.

Second, IT support teams must troubleshoot user issues: namely employees and external recipients who are unfamiliar with encryption protocols and need support in overcoming difficulties in message decryption. These could be caused by compatibility issues between different email clients or systems, expired or missing digital certificates, incorrect key exchanges, or confusion surrounding accessing encrypted messages through portals or attachments.

Lastly, IT and governance teams must keep up-to-date with changing regulatory updates and email security threats. As compliance requirements evolve, healthcare organizations must reassess encryption standards, upgrade outdated protocols, and ensure that their workforce adheres to best practices. Without an adequate strategy and the right systems in place, managing encryption can become a constant drain on IT bandwidth, taking personnel away from other aspects of their work that contribute to patient care.

Effective Strategies For Email Encryption

Having discussed the most common encryption challenges and how they can impact a company’s email security posture, let’s look at some of the most powerful mitigation strategies, which will improve the email encryption experience for both senders and recipients.

Balance Security With Ease of Use

To overcome the challenges of user inaccessibility, human error, and excessive administrative overhead, healthcare organizations must balance the ease of use of their encryption solutions with the level of security they provide.

While opting for the most secure encryption protocols intuitively seems like the best option, extra security often comes at the expense of usability, which can render the encryption irrelevant if users decide to circumvent it altogether, as outlined earlier. Instead, it’s essential to evaluate the sensitivity of message content and select a corresponding level of encryption.

Moving onto practical technical examples, Transport Layer Security (TLS) is a widely used email encryption standard, thanks to its ease of implementation and use, i.e., once activated, no further action is required by the user to encrypt the message content. However, TLS only encrypts ePHI in transit, i.e., when being sent to recipients, which may prove insufficient for highly sensitive patient data.

In contrast, encryption protocols such as Secure/Multipurpose Internet Mail Extensions (S/MIME), AES-256 and Pretty Good Privacy (PGP) provide more comprehensive encryption, safeguarding the ePHI contained in email communications both in transit and at rest, i.e., when stored in a database. Now, while this makes them more effective at securing patient data and achieving HIPAA compliance, these standards are more complicated to implement and to use than TLS encryption.

S/MIME requires users to obtain and install digital certificates from a Certificate Authority (CA), which verifies their respective identities and provides the public key for encryption. Consequently, both the sender and recipient must have valid certificates; if either party’s certificate is revoked or expires, they won’t be able to encrypt or decrypt the message, respectively.

With PGP, meanwhile, users must manually generate and exchange public/private keys. This offers greater flexibility than S/MIME but requires careful key management, which can be confusing for non-technical users. If a recipient doesn’t have the sender’s public key, they won’t be able to decrypt the message. Additionally, both S/MIME and PGP require a public key infrastructure (PKI), which can add considerable administrative overhead, particularly in regards to the management of certificates, public keys, and user credentials.

Accounting for this, healthcare organizations can balance security with accessibility by employing a tiered encryption strategy: using TLS for lower-risk communication while opting for S/MIME or PGP for more sensitive communications.

Enable Automatic Encryption

Subsequently, the challenge of balancing security with accessibility can be remediated by deploying an email delivery platform that not only removes the need for manual user intervention but also automatically applies the appropriate encryption standard based on message content and delivery conditions. Rather than relying on users to choose the correct method—or worse, bypass encryption altogether—modern email solutions like LuxSci can intelligently enforce encryption without affecting the user experience.

Many healthcare companies rely on TLS encryption because it eliminates the need for encryption keys or certificates, additional log-ins, etc. For this reason, it’s often referred to as ‘invisible encryption’ for its lack of effect on the user experience.

However, to be most effective, both the sender’s and recipient’s email servers must support enforced TLS (i.e., TLS 1.2 and above). In the event the recipient’s email server doesn’t support TLS, the email message will be delivered unencrypted or fail to send altogether, depending on the server configurations. Additionally, once the email is delivered to the recipient’s inbox, unless the recipient’s email infrastructure encrypts messages at rest, it will be stored in an unencrypted format.

Consequently, while TLS is ideal for email messaging that doesn’t contain highly sensitive ePHI, it’s insufficient for all healthcare communication. To ensure the secure and HIPAA compliant inclusion of patient data in emails, healthcare organizations should opt for an email solution that supports automated, policy-based encryption, which can upgrade to S/MIME or PGP when necessary. This offers the combined benefits of optimal ePHI security, minimal administrative burden, and removing the need for staff intervention.

Invest in Employee Education

While a flexible encryption policy and deploying email solutions that support automation will go a long way towards overcoming email encryption challenges, these efforts can still be undermined if users aren’t sufficiently educated on their benefits and use. For this reason, it’s crucial that healthcare companies take the time to educate their employees on both the how and why of email encryption.

Even the most advanced encryption systems can fail if employees don’t understand how to use them properly, as well as what to look out for in their day-to-day email use. Some aspects of email encryption, such as recognizing secure message formats or troubleshooting delivery issues, may still require user awareness. With this in mind, employee training programs should focus on recognizing when additional encryption measures are necessary, how to ask for assistance, the dangers of unsecured channels, and how to report suspicious activity in addition to the practical aspects of using your email delivery platform.

Overcome Email Encryption Challenges with LuxSci

LuxSci is a leader in secure healthcare communication, offering HIPAA compliant solutions that empower organizations to connect with patients securely and effectively. With over 20 years of expertise, we’ve facilitated the delivery of billions of encrypted emails for healthcare providers, payers, and suppliers.

Luxsci’s proprietary SecureLine encryption technology is specially designed to help healthcare organizations overcome frequent encryption challenges and better ensure HIPAA compliance with powerful, flexible encryption capabilities. Its features include:

Comprehensive email encryption: ensuring the encryption of patient data in transit and at rest.
Automated encryption: “set it and forget it” email encryption guarantees security and HIPAA compliance – with no action required on the part of users once configured.
Flexible encryption: dynamically determining the optimal level of email encryption, as per the recipient’s security posture, job role and supported encryption methods. This makes sure messages are delivered securely while maintaining HIPAA compliance.

Ready to take your healthcare email engagement to the next level? Contact LuxSci today!

How-To Guide: High Volume HIPAA Compliant Email

March 28, 2025
Pete Wermter

In a world of increasing and more frequent healthcare communications, secure, scalable, and HIPAA compliant email is a necessity for large scale operations. Whether you’re engaging patients, members, customers, or healthcare professionals, email remains one of the most effective and preferred channels for reaching people with timely, relevant information.

But when Protected Health Information (PHI) is involved, and your campaigns exceed tens or hundreds of thousands of emails per month, the challenge becomes more complex.

How do you scale email outreach without compromising data security, HIPAA compliance, deliverability, or performance?

To help answer that question Download the How-To Guide: HIPAA-Compliant High Volume Email Campaigns.

This educational guide is purpose-built for executives, compliance officers, IT security teams, and digital marketers across the healthcare ecosystem — including providers, payers, and suppliers — who are looking to advance their email communications to better engage with targets, increase conversions, and improve the patient experience — all while meeting the highest standards for privacy and security.

Why You Need This Guide

With more than 20 years of experience helping organizations securely deliver billions of healthcare emails and messages, at LuxSci we’ve seen just how challenging and mission-critical high volume email campaigns can be when HIPAA is in play and high performance is a requirement. Too often, teams are forced to choose between usability and security — leading to clunky workarounds, manual processes, or worse, non-compliance.

This guide lays out the foundation for doing things right from the start — so your organization can confidently scale email engagement, reduce operational inefficiencies, and improve outcomes without risking a breach.

Here’s a preview of what’s inside:

Understanding HIPAA Compliance in Email

The guide begins with a clear explanation of what qualifies as PHI — and how even something as simple as an email address can become identifiable under HIPAA rules. It explores how to:

Secure PHI both at rest and in transit
Choose the right encryption methods for different types of email (e.g. TLS vs. portal-based delivery)
Ensure you have a Business Associate Agreement (BAA) in place with any vendor handling PHI
Avoid common compliance pitfalls that lead to fines — some exceeding $2 million per year

Strategies for High Volume Email Success

Sending email at scale isn’t just a compliance issue—it’s a deliverability challenge. That’s why the guide also dives into the infrastructure and best practices needed to ensure your emails land in the inbox and not the spam folder. Highlights include:

Why using dedicated servers and IPs is critical for both security and performance
How to gradually warm up new IP addresses to establish a strong sender reputation
The importance of list hygiene, opt-in management, and CAN-SPAM compliance
How to implement SPF, DKIM, and DMARC to improve authentication and reduce spoofing risks

These insights are supported by real-world examples of how organizations are using PHI to personalize communications, closing care gaps, increasing patient satisfaction, and driving higher ROI.

Built for the New Era of Healthcare Engagement

At LuxSci, we believe that personalized healthcare communication can—and should—coexist with the highest standards of compliance and security. That’s why we’ve built hipaa compliant marketing solutions like our Secure High Volume Email and Secure Marketing solutions to empower healthcare teams to reach the right people, with the right message, at the right time — safely.

Download the Guide Today

Whether you’re launching a new patient outreach campaign, looking to streamline transactional emails, carrying out a healthcare email marketing campaign, or planning to scale communications across your business, this guide offers the practical insights and technical guidance you need to move forward — securely and compliantly.

Download the How-To Guide: HIPAA-Compliant High Volume Email Campaigns.

What Are the 4 Ps of Healthcare Marketing

October 4, 2024
Erik Kangas

Successful healthcare marketing combines four key elements – Product, Price, Place, and Promotion – to effectively reach patients, customers and healthcare partners. These marketing principles guide product and service development, pricing, delivery methods, campaign strategies and promotional activities. Marketing teams should apply these concepts, while meeting healthcare regulations and patient privacy standards.

Product Development in Healthcare

Medical services, products and treatments are core offerings in healthcare marketing. Organizations develop product and service lines based on community health needs and market opportunities. Product planning includes new medical technologies, treatment protocols, and patient care programs. Marketing teams should work with clinical departments to define features and benefits. Patient needs and competitor offerings must be researched to identify product and service gaps in your own offerings. Product development also should consider insurance coverage requirements and reimbursement rates. Teams should then create product and service descriptions and marketing content and materials that accurately represent your capabilities and benefits.

Healthcare Pricing Strategies

Price planning in healthcare marketing balances product and service costs, market rates, and patient accessibility. Organizations should analyze insurance reimbursement levels, operating expenses, and competitive pricing. Marketing teams should also develop pricing communications that help patients understand their financial responsibilities, working with billing departments to create clear cost explanations and payment options. Effective pricing strategies include considerations for different insurance plans and self-pay patients. Teams must regularly monitor market pricing trends and adjust rates based on product and service costs and competition.

Healthcare Service Delivery and Access Points

Healthcare organizations should plan new products, services and delivery methods to maximize patient access. Marketing teams analyze geographic coverage, facility capabilities, and effective communications practices to ensure they are connecting with patients at the right time, over the right channel. They promote various access points including medical offices, outpatient centers, and telehealth options. Location planning considers population density, competition, and healthcare demand patterns. Evaluations including facility requirements for different services and patient volumes are necessary here. Marketing materials and content should display convenient access points and service availability, and/or easy access to new products. Organizations should track utilization rates across different channels and locations to optimize engagement and deliver the best outcomes.

Marketing Communications and Promotion

Healthcare marketing teams develop promotional strategies to reach patients and customers, as well as healthcare providers, payers and suppliers. They should create educational content about medical services and treatment benefits, new products, preventative care, as well as promotional plans that include advertising schedules, content distribution, and community outreach communications. The teams select marketing channels based on target audience preferences and message requirements, such as email or social media platforms. A main team goal should be to maintain consistent branding across all marketing materials and platforms, and to follow healthcare advertising guidelines and regulatory requirements for all communications, especially HIPAA. Organizations can measure campaign effectiveness through patient response rates, conversions, service utilization and new product sales.

Integration of Marketing Elements

Marketing plans should combine all four elements to create effective healthcare programs. Teams should ensure that product offerings are aligned with pricing strategies, patient needs and channel preferences. From there, promotional messages and campaigns should be developed to accurately represent services and products. Marketing activities should be coordinated between different departments to ensure consistent experiences, branding and outcomes. Organizations can track how changes in one area affect other marketing elements. Teams should adjust their marketing and channel mix based on performance data and market changes. Integration planning helps maintain efficient marketing operations and resource use.

Measurement and Performance Review

Healthcare organizations should establish metrics to evaluate their marketing program results at all times. Performance is tracked across all four marketing elements through regular reporting, in addition to analysis of patient volume, engagement, revenue generation, and satisfaction scores. Marketing departments should measure return on investment for different activities and campaigns to determine what programs and working and those that need to be updated or stopped. Performance reviews help teams identify successful strategies and improvement areas. Organizations should use this data to refine their marketing approaches and resource allocation as conditions change. Regular assessments ensure marketing programs meet organizational goals, as well as patient and customer needs.

What Are HIPAA Secure Email Requirements? A Detailed Guide for Healthcare Companies

March 3, 2025
Pete Wermter

This concise guide answers the often-asked question of ‘what are HIPAA secure email requirements?’. We’ll explore the essential components of HIPAA secure email and the measures healthcare organizations must take to best protect the sensitive patient and customer data under their care.

In healthcare, email often includes protected health information (PHI), and any transmission of PHI via email must ensure that this sensitive data is protected from unauthorized access and subsequent exposure.

HIPAA compliant email refers to a HIPAA secure email service that meets the privacy and security standards set by the Health Insurance Portability and Accountability Act (HIPAA). In the pursuit of securing patient data and ensuring each individual’s right to privacy, HIPAA has issued a series of guidelines designed to protect sensitive patient data during email transmission.

HIPAA Secure Email Requirements In Detail

To be classified as HIPAA secure email, an email system must meet a range of privacy and security requirements designed to protect sensitive patient data.

Let’s begin with a deeper dive into the essential requirements of a HIPAA compliant email provider:

Encryption

Encryption is the cornerstone of HIPAA compliant email. Both in-transit encryption (when the email is sent) and at-rest encryption (when the email, and, by extension, the PHI it contains, is stored on the server) are mandatory HIPAA requirements.

End-to-end encryption safeguards PHI from being accessed by malicious actors, e.g. hackers and other cybercriminals, even if they get hold of it. Without proper encryption, in contrast, the sensitive health information contained in emails can easily be interpreted, and, consequently, has value if intercepted.

Better still, encryption for HIPAA secure email needs to be automated and flexible. Flexibility refers to the email provider’s ability to match the type of encryption with the recipient’s security posture. Automation, meanwhile, ensures that PHI is encrypted without the need for a manual process by the email user or human intervention. These capabilities not only reduce the potential for human error but also diminish the admin overhead of securing PHI.

Access Control

HIPAA email rules require strict access controls to ensure that only authorized personnel can access sensitive data. Not everyone at a healthcare organization, or a third party that happens to have access to their data in the course of their business relationship, should have access to patient data. With this in mind, access to PHI must be enforced through risk mitigation measures such as user authentication, multi-factor authentication (MFA), and role-based access controls (RBAC).

MFA, for instance, requires users to verify their identity beyond their login credentials. This could include something they know (a secret phase, a one-time password (OTP), something they have (a keycard or security token), or something they are (i.e., biometrics: retinal scans, fingerprints, etc.). The reason it’s called multi-factor authentication is that healthcare organizations can implement as many authentication measures as warranted by the sensitivity of the patient data.

Audit Trails

HIPAA mandates that all access to PHI be logged for auditing purposes. This includes tracking the sender, recipient, timestamps, and any modifications to the email or its contents. Audit logs ensure that any unauthorized access or potential breach can be investigated, addressed, and, above all, contained promptly. For HIPAA secure email compliance, audit logs must be kept for a minimum of six years and must be easily accessible for compliance audits.

Business Associate Agreement (BAA)

When using third-party email providers, such as LuxSci, healthcare organizations must enter into a Business Associate Agreement (BAA). This legally binding contract ensures that the email provider, i.e., the business associate, is also held to HIPAA’s security and privacy requirements. By the same token, the BAA covers the responsibilities of the healthcare provider – or ‘covered entity’ – in safeguarding PHI and outlines penalties for non-compliance for both parties.

HIPAA Secure Email Best Practices

To ensure your email system meets HIPAA’s compliance standards and remains secure, it’s critical to follow these best practices. If you’re unsure where to start when it comes to tightening up your compliance efforts, start with these essential principles:

End-to-End Encryption: A HIPAA compliant email provider must implement end-to-end encryption: meaning that PHI is encrypted when sent and decrypted only by the intended recipient. LuxSci’s encryption protocols ensure that PHI is never exposed during the transmission process or in storage.
Implement Multi-Factor Authentication (MFA): to further enhance the security of your email communications, expand your IT infrastructure to enable MFA. This ensures that unauthorized parties cannot access email accounts even if login credentials are compromised. MFA adds another layer of protection by requiring as many factors of identification as the PHI demands.
Regular Audits: conduct regular audits to ensure that all actions on email communications are properly logged, tracked, and record who accessed patient data and for what purpose. As well as malicious behavior, these audits can highlight overly generous access privileges and enable security teams to tighten up their policies and protocols.
Continuous Monitoring: as well as regularly auditing PHI access logs, you need to deploy a continuous monitoring solution to remain aware of suspicious behaviors and potential attempts at data breaches. Without continuous monitoring, malicious actors have the opportunity to infiltrate your network between periodic risk assessments.
Employee Education and Training: if your staff isn’t educated on how to handle sensitive patient data, all your other efforts to safeguard PHI are likely to be undermined. In light of this, training your workforce on HIPAA regulations, how to adhere to them, and the potentially dire consequences of failing to comply with their standards, must be a top priority.
Choose a Trusted, HIPAA Compliant Email Provider: the email provider you select must offer features specifically designed to meet HIPAA standards, removing a lot of the complications from achieving compliance in the process.

Why Choose LuxSci for Your Organization’s HIPAA Secure Email Communication Needs?

When it comes to safeguarding PHI, LuxSci offers the security of flexibility and automated end-to-end encryption, unparalleled scalability, and best-in-class deliverability to carry out effective, high-volume HIPAA-compliant email campaigns.

Whether you’re a growing practice or a large healthcare company, our solutions facilitate effective email engagement, while maintaining the highest standards of email security and compliance.

Here’s are the ways LuxSci’s leading solutions help ensure HIPAA-compliant email communication within your healthcare organization, no matter the size of your company, or the volume of emails you send:

HIPAA Secure Email Gateway for Google Workspace and Microsoft 365

LuxSci’s Secure Email Gateway is the perfect solution for smaller healthcare organizations or those already using Google Workspace or Microsoft 365. Our service enables you to make your existing email system HIPAA compliant without disrupting your current workflow and user experience. LuxSci’s Secure Email Gateway automatically applies end-to-end encryption, ensuring that all emails containing PHI are securely transmitted. The best part? The process is automated and transparent to users, requiring no extra steps and causing no interruptions.

Secure High Volume Email Solution for Large Healthcare Organizations

For larger healthcare providers and organizations that send thousands or millions of emails per month, LuxSci’s Secure High Volume Email solution provides a scalable, highly secure solution that ensures compliance without sacrificing performance. Whether you’re sending newsletters, appointment reminders, preventative care emails, or other communications to a large patient or customer base, our solution delivers best-in-class HIPAA-compliant email deliverability rates of 95% or higher.

Flexible, Automated Encryption with SecureLine Technology

At the heart of LuxSci’s HIPAA-compliant email solutions is our SecureLine technology, our proprietary flexible and automated encryption service. SecureLine enables highly flexible, automated encryption that adapts to the security posture of your recipients’ servers, ensuring that messages reach the intended recipient. Whether you are sending individual messages or conducting a bulk email outreach campaign, SecureLine automatically handles the encryption, keeping your email communications protected, secure and private from end-to-end.

Scalability for Large Enterprises

LuxSci’s infrastructure supports some of the largest healthcare organizations in the world, providing the scalability needed to handle high volumes of sensitive communications, including sending hundreds of millions of emails per year. As your organization grows, LuxSci can scale its solutions to meet your needs, ensuring that you maintain HIPAA compliance and a seamless, secure email experience.

Contact LuxSci Today

If you have any questions or concerns about HIPAA secure email requirements or would like to learn more about how LuxSci can help secure your healthcare communications, don’t hesitate to contact us.

We’ll be happy to discuss your unique needs and help you find the right solutions to help your organization become more secure, compliant, and better at engaging with your patients and customers.