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 Can I Prove an Email was Sent to Me?

January 16, 2024
LuxSci

Almost everyone has been in this situation: someone claims to have sent you an email message, but you look in your inbox and don’t see it. As far as you know, you never got it. How can you prove an email was sent?

How to Prove That an Email was Sent

So, where do you start? As the purported recipient of an email message, the easiest way to prove that a message was sent to you is to have a copy of that message. It could be:

In your inbox or another email folder
A copy in your permanent email archives

Sometimes, missing emails are caused by simple user errors. The obvious place to start the search is in your inbox and email folders. It’s also a good idea to check your email filtering and archival services. It’s possible that your email filtering system accidentally flagged the message as spam or sent it to quarantine. If it’s not there, check your email archival system. That should capture a copy of all sent and received messages.

Hopefully, that will solve the issue. If it doesn’t, it’s worth stepping back to understand where the email could have gone and where you should turn next to solve the problem.

What happened to the email?

In reality, there are only a few things that could have happened:

The recipient never sent the message.
The recipient did send the message, but it did not reach you.
The message did make it to you, but it was accidentally or inadvertently deleted (or overlooked).

Let’s begin with what you can check and investigate. Start your search soon. The more time that elapses, the less evidence you may have, as logs and backups get deleted over time.

Did the recipient actually send the message?

First, you should know that the sender could have put tracking on the message so that they were informed if you opened or read it (even if you are unaware of the tracking). In such cases, the sender can disprove false claims of “I didn’t get it!” If you are concerned about an email being ignored, use read recipients or tracking pixels to confirm email delivery.

If you never saw the message, do what we discussed above and start searching your email folders for it. It could have been accidentally moved to the wrong folder or sent to the Trash folder. If you have a folder that keeps copies of all inbound emails (like LuxSci’s “BACKUP” folder), check there too. Check your spam folder and spam-filtering system. Your spam-filtering system may also have logs that you can search for evidence of this message passing through it. Finally, check any custom email filters you may have set up with your email service provider or in your email programs. If you have filters that auto-delete or auto-reject some messages, see if that may have happened to the message in question.

The searches above are straightforward; you can do many of them yourself. Often, they will yield evidence of the missing message or explain why you might not have received it.

Maybe the email was sent but didn’t make it to you?

Email messages leave a trail as they travel from the sender to the recipient. This trail is visible in the “Received” email headers of the message (if you have it) and in the server logs at the sender’s email provider and your email provider. If you know some aspects of the message in question (i.e., the subject, sender, recipient, and date/time sent), you can ask your email service provider to search their logs to see if there is any evidence of such a message arriving in their systems. This will tell you if such a message reached your email provider. However, email providers can typically only search the most recent one to two weeks of logs. So, if the message in question was from a while ago, your email service provider may be unable to help you (or may charge you a lot of money to manually extract and search archived log files if they have them).

If your email provider has no record of the message or cannot search their logs, you (or the sender) can ask the same question of the sender’s email provider. If they can provide records of such an email being sent through their system, that will prove the email was sent.

The log file analysis provided by the email providers could also explain why you didn’t get the message. Your email address might have been spelled wrong, there could have been a server glitch or issue, etc. However, if the message was sent long ago, the chance of learning anything useful from the email provider is small. Also, if you use a commodity email provider such as AOL, Yahoo, Outlook, Gmail, etc., you may find it impossible to contact a technical support person and have them perform an accurate and helpful log search. Premium providers, like LuxSci, are more likely to support your requests.

The last thing you can do is have the sender review their sent email folders for a copy of that message. If they have it, that can indicate that they sent it and can reveal why you didn’t get it (i.e., wrong email address, content that would have triggered your filters, etc.). However, be wary. It is easy to forge a message in a sent email folder, so it should not be considered definitive proof that the message was sent. And, even so, just because the message was sent, it does not prove it ever made it to your email provider or inbox.

The recipient never actually sent the email message

If the sending event was recent, then the data from your email service provider can prove that the message did not reach you, but that doesn’t prove that it was not sent. The sender may claim that they do not have a record of sent messages and that their email provider will not do log searching, and that may also be true. At this point, you are stuck without a resolution.

While email is a reliable delivery system, there are many ways for messages not to make it to the intended recipient. Whether it was not sent or was sent and never arrived, the result is the same- no message for you. As a result, it’s best not to send legal notices or other important documents only by email. Using read receipts and other technologies when sending important messages can help increase confidence that an email was sent and received. Still, there is no foolproof way to guarantee email delivery.

How Do I Prove the Email Sender’s Identity?

A separate but related question is, how can I be sure the sender is who they say they are? Social engineering is rising, and cybercriminals can use technology to impersonate individuals and companies. If you are questioning whether the sender actually sent the message to your inbox (or if it is from a spammer or cybercriminal), it is necessary to perform a forensic analysis of the email headers (particularly the Received lines, DKIM signatures, etc.) and possibly get the sender’s email provider involved to corroborate the evidence. To learn more about how to conduct this analysis, please read: How Spammers and Hackers Can Send Forged Email.

What is a HIPAA Compliant Workspace?

December 4, 2024
Erik Kangas

A HIPAA compliant workspace combines physical, technical, and administrative precautions that protect patient information in healthcare environments. These workspaces include secure physical areas, configured computers and devices, appropriate access controls, and staff trained on privacy practices. Healthcare organizations implement these measures to maintain patient confidentiality while allowing employees to perform necessary work functions in accordance with HIPAA Privacy and Security Rules.

Physical Workspace Requirements

Healthcare organizations design physical workspaces to prevent unauthorized access to patient information. Office layouts position computer screens away from public view to prevent visual exposure of records. Secure areas with badge access or keypad entry restrict unauthorized personnel from entering spaces where protected health information is handled. Document storage includes locked cabinets for paper records when not in use. Clean desk policies ensure sensitive information isn’t left visible when workstations are unattended. Privacy screens on monitors prevent visual access from side angles in shared work environments. These physical controls work together to create the foundation for information privacy.

Technical Elements of a HIPAA Compliant Workspace

Computer systems in HIPAA compliant workspaces include security measures that protect electronic health information. Workstations require secure login procedures, with multi-factor authentication for accessing patient records. Automatic screen locking activates after short periods of inactivity. Encryption protects data stored on local devices and information transmitted across networks. Software includes current security patches and antivirus protection. Printers and fax machines receiving patient information reside in secure areas with output collection procedures. Organizations should implement standardized configurations across all workstations to maintain consistent security controls.

Administrative Controls and Policies

Policies guide how staff interact with protected health information in workspace environments. Authorization procedures determine which employees can access specific types of patient information based on job responsibilities. Training programs ensure staff understand privacy requirements and proper handling of health information. Workspace monitoring may include periodic walk-throughs to identify potential privacy issues. Document disposal procedures include shredding for paper records and secure deletion for electronic files. Healthcare entities should always document these administrative controls as part of their overall HIPAA compliance program.

Remote Work Considerations

Remote workspaces require extra considerations to maintain a HIPAA compliant workspace outside of traditional office environments. Home office setups need privacy measures to prevent family members from viewing patient information. Virtual private networks (VPNs) can create secure connections to healthcare systems when working remotely. Organizations often restrict downloading patient information to personal devices. Video conferencing tools for healthcare discussions must include appropriate security features. Remote work policies typically define acceptable work locations and security requirements. These measures help maintain compliance as healthcare work extends beyond traditional facilities.

Mobile Device Management

Mobile devices in HIPAA compliant workspaces require specific security controls. Smartphones and tablets accessing health information need encryption, passcode protection, and remote wiping capabilities. Mobile device management solutions help organizations enforce security policies on both organization-owned and personal devices used for work. Application controls limit which programs can access or store patient information. Policies typically address device usage in public settings to prevent unauthorized viewing.

Workspace Compliance Documentation

Healthcare organizations maintain documentation about their workspace security measures. Facility security plans outline physical safeguards and access restrictions. System security documentation describes technical controls for workstations and networks. Training records demonstrate that staff receive appropriate privacy instructions and education. Risk assessment reports identify potential workspace vulnerabilities and mitigation strategies. These documents show HIPAA compliant workspace efforts during audits or regulatory reviews. Regular updates are critical to keep documentation current as workspace environments and security requirements evolve.

What Are the HIPAA Emailing Rules Healthcare Organizations Must Follow?

September 23, 2025
Erik Kangas

HIPAA emailing rules require healthcare organizations to protect patient information through encryption, access controls, and business associate agreements when transmitting protected health information electronically. The HIPAA Security Rule mandates that covered entities implement administrative, physical, and operational safeguards to ensure the confidentiality, integrity, and availability of electronic protected health information during email transmission. These regulations apply to all healthcare providers, health plans, and healthcare clearinghouses that use email to communicate about patients, making compliance with HIPAA emailing rules essential for avoiding regulatory penalties and protecting patient privacy.

Encryption Requirements and Data Protection Standards

Protected health information transmitted via email must be encrypted using current industry standards that render the information unreadable to unauthorized recipients. The Department of Health and Human Services does not specify particular encryption algorithms, but most healthcare organizations implement Advanced Encryption Standard (AES) 256-bit encryption to meet regulatory expectations. Transport Layer Security (TLS) protocols create secure connections between email servers during message transmission, preventing interception of patient data while communications travel across public internet networks. Message-level encryption protects email content even if transport security fails or messages are stored on intermediate servers during transmission delays. End-to-end encryption ensures that only intended recipients can decrypt and read patient communications, maintaining privacy protection throughout the entire communication process.

Digital signatures provide additional security by verifying sender authenticity and detecting any unauthorized modifications to email content during transmission. These authentication measures help recipients confirm that patient communications originated from legitimate healthcare sources and have not been tampered with by malicious actors. Certificate-based authentication systems ensure that only verified healthcare providers and authorized recipients can access encrypted patient information sent through email channels. Key management protocols protect the encryption keys that safeguard patient information while ensuring that legitimate healthcare providers can access necessary communications without delays that might interfere with patient care. Secure key storage systems prevent unauthorized access to encryption keys while maintaining backup procedures that prevent data loss if primary key storage systems experience failures. Healthcare organizations following HIPAA emailing rules must maintain documented procedures for key management that balance security requirements with operational necessity.

Access Control Implementation and User Authentication

Multi-factor authentication serves as the primary defense against unauthorized access to healthcare email systems containing patient information. Users must provide multiple forms of verification before accessing their email accounts, typically combining passwords with mobile device verification codes, hardware tokens, or biometric identification. Role-based permissions ensure that healthcare staff can only access patient communications relevant to their job responsibilities and patient care relationships. Physicians need different access levels compared to billing specialists or administrative staff, with granular controls preventing unauthorized viewing of patient information outside legitimate care activities. Access permissions should automatically adjust when staff members change positions within healthcare organizations or when their patient care responsibilities shift to different departments or specialties.

Session management controls protect against unauthorized access from unattended workstations by automatically logging users out of email systems after predetermined periods of inactivity. Session timeout configurations must balance security requirements with operational efficiency, allowing sufficient time for healthcare providers to compose thoughtful patient communications without creating security vulnerabilities. Login monitoring systems detect unusual access patterns and trigger security responses when potential account compromises occur. Password policies must enforce strong authentication credentials without creating excessive burden that encourages staff to write down passwords or reuse credentials across multiple healthcare systems. Healthcare organizations implementing HIPAA emailing rules benefit from password managers that help staff maintain unique, complex passwords while integrating with single sign-on systems that reduce authentication friction during busy clinical workflows.

BAA Requirements for HIPAA Emailing Rules

Business associate agreements establish the legal framework governing relationships between healthcare organizations and their email service providers. These contracts must specify exactly how providers will protect patient information, what security measures they will maintain, and detailed procedures for reporting security incidents to healthcare organizations. Agreement terms should cover data retention requirements, geographic restrictions on information storage, and procedures for returning or destroying patient data when business relationships terminate. Vendor security assessments verify that email service providers maintain appropriate technical safeguards and compliance programs before healthcare organizations entrust them with patient information. Due diligence evaluations should include reviewing provider security certifications, examining their data center facilities, and verifying their experience with healthcare compliance requirements. Insurance verification ensures that email providers maintain adequate cyber liability coverage to protect healthcare organizations from financial exposure during security incidents.

Audit rights enable healthcare organizations to verify that their email providers comply with business associate agreement terms and maintain appropriate security controls. These contractual rights should include access to security audit reports, penetration testing results, and compliance documentation relevant to patient data protection. Liability allocation clauses protect healthcare organizations from financial responsibility when email security incidents result from provider negligence or system failures. Contract terms should clearly define each party’s responsibilities for maintaining security controls and specify how costs will be allocated when security breaches require patient notification, credit monitoring, or regulatory penalties. Those mastering HIPAA emailing rules recognize that business associate agreements are the foundation for compliant email communication with third-party service providers.

Workflow Integration for HIPAA Emailing Rules

Staff training programs must educate healthcare workers about appropriate use of email for patient communications and help them understand when alternative communication methods are more appropriate than electronic messaging. Training should cover recipient verification procedures, encryption activation requirements, and any other HIPAA Emailing Rules for determining what health information is suitable for email transmission versus what requires telephone calls or secure patient portals. Healthcare staff need decision-making frameworks that help them evaluate the appropriateness of email communication for different types of patient information and clinical situations. Incident response procedures prepare healthcare organizations to handle security breaches involving patient information transmitted through email systems. Response protocols should include immediate containment measures, assessment of potential patient impact, and notification procedures for affected individuals and regulatory authorities. Documentation requirements ensure that incident response activities demonstrate compliance with breach notification requirements and provide evidence of appropriate remediation efforts.

Backup and disaster recovery procedures protect patient communications from data loss while maintaining the same encryption and access control standards as primary email systems. Recovery procedures should be tested regularly to verify that patient information can be restored quickly without compromising security protections. Archive systems must preserve encrypted email communications for required retention periods while maintaining searchability for clinical and legal purposes. Quality assurance monitoring verifies that email security measures function correctly and staff follow established procedures for protecting patient information. Audit procedures should review email usage patterns, verify encryption activation, and assess compliance with access control requirements. Entities implementing HIPAA emailing rules receive help from automated monitoring systems that detect potential security issues and generate alerts when unusual email activities occur that might indicate security incidents or policy violations.

Consent Procedures for HIPAA Emailing Rules

Patient consent requirements vary depending on the type of health information being transmitted and the communication preferences expressed by individual patients. While healthcare providers can generally communicate with patients about treatment, payment, and healthcare operations without specific authorization, organizations should obtain written consent before sending detailed medical information through email channels. Consent documentation should explain security measures while acknowledging that email communication carries inherent privacy risks despite protective technologies. Communication content guidelines help healthcare staff determine what patient information is appropriate for email transmission versus what requires more secure communication methods. Appointment reminders, general health education, and routine test results may be suitable for encrypted email communication, while psychiatric evaluations, substance abuse treatment records, or genetic testing results may require additional protections or alternative communication approaches. Staff need clear criteria for evaluating the sensitivity of patient information and selecting appropriate communication channels.

Is SendGrid HIPAA-Compliant?

January 23, 2025
LuxSci

Twilio’s SendGrid is a cloud-based email marketing platform that contains the tools and resources that organizations need to carry out bulk email marketing campaigns. By providing companies with a robust, scalable email infrastructure, SendGrid reduces the technical and management overhead from delivering emails at scale.

SendGrid’s capabilities and benefits are undeniable – and are the reason why the popular platform is the email delivery service of choice for prominent companies like Spotify and Airbnb. For healthcare organizations, however, while reliability and scalability are essential for large-scale patient engagement campaigns and communications, security is another crucial concern. More specifically, for a healthcare company to send electronic protected health information (ePHI) through an email services platform, the service must be HIPAA-compliant.

This then begs the question, is SendGrid a HIPAA compliant email service? Subsequently, can companies use SendGrid to transmit ePHI?

The short answer is no, they are not. Let’s take a closer look…

Is SendGrid HIPAA-Compliant?

SendGrid is not a HIPAA-compliant email service. There are two key reasons for this:

It lacks sufficient encryption measures
SendGrid does not sign business associate agreements (BAAs)

Let’s discuss each reason in greater detail.

Basic Encryption

SendGrid only offers the basic encryption provided by the Simple Mail Transmission Protocol (SMTP), i.e., the standard mechanism used to transmit emails.

Unfortunately, this level of encryption leaves ePHI vulnerable to cyber threats such as business email compromise (BEC) attacks, ransomware, and device loss or theft. In contrast, for an email services platform to be HIPPA-compliant, it must protect ePHI in transit and at rest, using security measures like Transport Layer Security (TLS) encryption and end-to-end encryption.

Refreshingly, SendGrid is clear and upfront about this (in contrast to, Mailchimp, for example, who make you dig a little deeper to determine their non-compliance) – as Twilio’s documentation explicitly says that they do not offer HIPAA-compliant data transmission. Stating, “SendGrid does not natively support HIPAA-compliant data transmission. We do not offer any encryption or security measures surrounding message transmission beyond those included in the SMTP RFC, which was not designed with HIPAA compliancy in mind.”

In short, SendGrid wasn’t designed to withstand the increased cyber risk that accompanies handling ePHI and isn’t HIPPA-compliant as a result.

No Business Associate Agreement

Additionally, in addition to lower levels of encryption, SendGrid does not sign the business associate agreements (BAA) required to be HIPPA-compliant.

A business associate agreement (BAA) is a written contract between a covered entity (your company) and a business associate (a service provider, such as an email services or email marketing platform) that’s an essential requirement of HIPAA compliance. A BAA details how two organizations can share data and the legal responsibilities of each party.

This is again stated on Twilio’s website that says, “Twilio SendGrid does not intend uses of the Service to create obligations under The Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), the Gramm-Leach-Bliley Act (“GLBA”) or similar laws and makes no representations that the Service satisfies the requirements of such laws. If You are (or become) a Covered Entity or Business Associate (as defined in HIPAA) or a Financial Institution (as defined in GLBA), You agree not to use the Service for any purpose or in any manner involving Protected Health Information (as defined in HIPAA) or Nonpublic Personal Information (as defined in GLBA).”

Here, Twilio is explicitly telling you that SendGrid does not fit the requirements of HIPPA-compliant and that you should not use their service to transmit ePHI.

HIPAA-Compliant Alternatives to SendGrid

While healthcare companies cannot rely on popular options like SendGrid if they want to utilize ePHI in their patient outreach campaigns, fortunately, there are HIPAA-compliant email platforms that are specifically designed for organizations that have to comply with the regulations.

As the most experienced HIPAA-compliant email provider, LuxSci specializes in providing secure and scalable HIPAA-compliant services for companies aiming to send hundreds of thousands – or millions – of emails. In light of this, we place security, regulatory and practical considerations front and center when building our solutions – from their early planning stages until final deployment.

Our approach results in tailor-made tools and services like HIPAA-compliant bulk email, secure text and secure marketing. This includes flexible encryption functionality, such as TLS, end-to-end, or role-based access encryption, that enable healthcare organizations to align their security with the sensitivity of the transmitted and their specific business requirements – all while remaining HIPAA compliant.

To discover how LuxSci and SendGrid stack up against each other, as well as with other HIPAA-compliant, general purpose and marketing email providers on the market, including Virtru and Mailchimp, take a look at our Vendor Comparison Guide. The guide takes a deep dive on 12 email delivery platforms, offering insights on what to consider when selecting a provider – and how to choose the vender best suited to meet your secure healthcare communications needs.

Get your copy here, and reach out to us with any questions.