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What is RMail?

RMail is RPost’s software-as-a-service solution that enables business users to track and prove email delivery and encrypt sensitive emails. Available as a MS Outlook add-in and for other popular software platforms, RMail works with any email address without any customization…

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RMail is a versatile tool that allows users to send encrypted emails, making it the preferred choice for both internal and client …
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RMail Personal


per user, per month

RMail Standard


per user, per month

Shared Volume

Varies by Plan

for 5 or more users

Entry-level set up fee?

  • No setup fee
For the latest information on pricing, visit


  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services

Starting price (does not include set up fee)

  • $7 per month
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Product Demos

RMail: De webversie voor Aangetekende E-mail - Video Demo


Frama RMail - Product Tour / Demo 2018

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Product Details

What is RMail?

RMail® is the e-security platform by RPost®, that specializes in email encryption for privacy and compliance, e-signatures, legal e-delivery proof, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors.

RMail installs into one’s existing Microsoft 365 Outlook, Gmail,, or other email and business management systems.

Install an RMail App

· Sender Selects: sender clicks the RMail “Send Registered” button and selects send features.

· RMail Recommends™: AI-infused prediction technology that, based on message criteria, automatically sensitizes senders, training them in-the-moment of sending, as to what RMail features should be applied to that message, and then sends with the recommended email protections.

Enable the RMail Gateway

· Secure Email Gateway: RMail Gateway is a suite of inbound email protections along with specialized outbound data leak and information protection services. Based on message metadata and administrator rules, RMail Gateway determines which messages should be sent with which added RMail features (i.e., encryption, type of encryption, certified e-delivery, for recipient e-signature, and more) and automatically sends the message in that manner, returning a certified record of e-delivery and privacy compliance for each sent message.

RMail is best for…

RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely, or (g) need to easily obtain a recipient e-signature on a sent document.

Product Description

Main RMail transmission-centric features:

· Registered Encryption™ email security automatically delivers email in a unique way to each recipient, creating the simplest user experience for the recipient while also returning auditable proof of privacy and compliance to the sender -- going far beyond basic TLS and link-retrieval systems. RMail includes different levels of encryption for when it is important to keep messages private from a recipient’s email administrator or other insiders.

· Registered Email™ certified e-delivery tracking and proof provides email open/delivery tracking and evidence, with timestamped proof of original content legally delivered. It returns a court-accepted timestamped Registered Receipt™ email without requiring any recipient action.

· Secure Large File Share -- senders can attach and track up to 1GB of files from Outlook or the RMail Web app. Senders can send securely to any recipient with encryption and configurable self-purging options (from 1 to 90 days) in a one-time online storage box that eliminates the risk of download recipients being able to see sender’s cloud storage file structure.

· RMail E-Sign and RSign are web-based electronic signature services. RSign enables signers to complete and sign documents using any desktop or mobile web browser in an intuitive, guided signing process.

· Disappearing Ink™ and ViewProof™ -- senders can tag certain parts of an email message to disappear from within the email after delivery after a designated amount to time since sending, number of views, or time per view. Senders can receive verifiable proof that the recipient has viewed selected tagged parts of an email.

· Redact Reply™ – senders can redact particularly sensitive text in a sent message such that if the recipient replies, that sensitive text is automatically removed from the reply email thread.

· SideNote® service – append a private “sticky note” to a copied or blind copied recipient, so they have context as to why they were copied, and with Disappearing Ink™ enabled, that note can be set for one-time-view and to disappear from the recipient inbox after.

Main RMail application-centric features:

· RMail Recommends™ AI-infused data leak protection -- automatically trains senders on which messages should be treated with special care, and have special RMail features applied, in-the-moment of sending. Dynamically adapts to prevent data leaks and automate email encryption.

· Right Recipient™ data shield – dynamically adapting service that, if a message is detected to contain sensitive content, automatically reviews the recipient addresses before transmission, determines if the sender should be prompted to verify that they really want to send sensitive information to the particular recipients, and then applies the appropriate level of encryption to the message enroute if sent.

· Anti-Whaling™ email impostor protection – RMail for Outlook includes patent pending Anti-Whaling technology that prevents targeted ‘spear-phishing’ detection specifically designed to prevent Business Email Compromise and CEO Fraud impostor email and other lures.

· RMail Wire Fraud Protection™ is a specialized service to assure the right message is sent to the right recipient, with options to apply message-level encryption automatically if the message is related to bill payments, invoices, or wire transfers.

· RMail Protected Documents™ is a specialized document encryption service that makes it easy for senders to apply protections to any document that live within the document itself, so the sender may at any time after transmission, track views, restrict to certain verified viewers, restrict functionality on the document (edit, print, watermark), or kill the document so that it can no longer be viewed by certain or anyone after a time period.

Deployment Options

RMail offers options for deployment including:

(a) secure email gateway product for inbound and outbound email security automation running at the email perimeter, as well as its

(b) email security app for specialized email security needs, running installed in the sender’s email program, and

(c) message-and-document-level data protection that embeds access rights management, information blocking and retrieval, and other security into parts of email messages and onto documents whether or not the document is attached to an email or otherwise shared (adds encryption to track and prevent unauthorized access to email content before or after it has been sent and additionally helps prevent accidental data loss due to misdirecting email to the wrong recipients).

As an additional benefit, the RMail email security app is AI-infused to provide automated “in-the-moment” security training and user sensitization, with dynamically adapting recommendations to apply certain security features to a particular message or behind-the-scenes automatically applying certain features.

Generally, these are deployed individually or combined; or complementing other third-party inbound security services.

(a) RMail secure email gateway is a perimeter email security service offering (standalone only for inbound, or outbound, or both). Some implement our outbound services only while maintaining other (existing) inbound service so we can complement; or

(b) RMail email security app is a client-based plug-in (which includes very specific inbound protections (not to replace other inbound, but to complement) plus very robust outbound (including AI security automation, etc.); or further,

(c) RMail may be deployed with both RMail Gateway secure email gateway and RMail secure email app client-based plug-in; and

(d) RMail message-and-document-level data protection may be automated within the RMail Gateway secure email gateway and RMail secure email app and/or accessed separately though the RMail web app.

Frequently Asked Questions

What are three differentiators against other similar sounding products?

RMail offers unique service benefits:

1. Email encryption user experience. RMail specializes in dynamically adapting the email encryption user experience based on the sender, content, or recipient system or needs, providing an easier user experience for sender and recipient, which importantly does not require recipients to have to log-in or create accounts.

2. Registered Receipt™ privacy compliance proof. Forensic audit-ready record on a message-by-message basis of timestamped proof of email delivery, content delivered plus fact of email encryption privacy compliance.

3. All-in-One outbound messaging services. RMail includes additional security, compliance, and productivity services and settings broadening the applicability of RMail services vis-à-vis others; including RMail’s dynamically adapting email encryption user experience, Registered Email™ certified e-delivery and compliance proof, electronic signature and digital forms services, in-the-moment end user security training, Right Recipient™ sensitive email correct-address verification, specialized Anti-Whaling email impostor protection, SideNote® email context services, Disappearing Ink™ message content rights management, ViewProof™ message content phrase view-detection with legal record, secure file sharing with attachment auto-expiration, and more.

What are three differentiators against Microsoft and Google e-security?

RMail offers unique service benefits:

1. Guaranteed Email Security. Standard Google and Microsoft email encryption is based on opportunistic TLS security. If there is no TLS available, the security offered may consists of adding an alert to the sender that the recipient does not support TLS. RMail, by contrast, provides 100% guaranteed end-to-end secure email encryption for all email recipients automatically, regardless of TLS status, does not require recipient log-ins or accounts, and adds features including one-click encrypted reply and encrypted reply with attached files up to 1GB, among other feature enhancements.

2. Registered Receipt™ privacy compliance proof. Microsoft and Google don’t provide proof of a secure email transmission. RMail, by contrast, provides by default, and for every RMail email transmission, a forensic audit-ready record of timestamped proof of email delivery, proof of content delivered, and proof of message privacy encryption compliance. This proof is critical to demonstrate privacy or e-delivery notice compliance to auditors, or to prove to third parties that if a claim of a breach occurred, the breach did not occur within the responsibility of the sender (transport from sender to initial recipient).

3. No dedicated email security specialist required. RMail automates email security in a way that is simple for customers to configure, provision and manage. There is no requirement for a dedicated email security specialist to manage complex configuration settings and multiple and non-intuitive options, as is the case with Microsoft’s advanced email security offerings. In RMail’s simplest form, a user can install the RMail app, the admin can deploy the RMail app for a user group, or the admin can change the email routing rules.

RMail Pricing

RMail Free is a free ongoing base level of service for periodic use. Cost: $0

RMail 365 includes all main service features for basic users. Cost: $7 per user per month.

RMail Standard includes all main service features, designed for standard business needs. Cost: $15 per user per month.

RMail Price Overview

Per User Plans: RMail license for main features on a per user basis.

Shared Volume Plans: RMail license for a designated volume of messages shared among a designated group of senders, automated system senders, or API automated sending.

Target Markets

Any business user that sends sensitive information, in particular those dealing with client matters (i.e., law firms), private or regulated consumer information (i.e., insurance, banks, investment advisory, health care), transactional, financial, strategic, or personnel related business information (finance, accounting, law, compliance, corporate, and HR departments).


RPost® offers in e-signature and cybersecurity services, specializing in email encryption for privacy and compliance, e-signature automation, legal e-delivery proof, document rights management, and AI-infused services to prevent data leaks and human e-security errors.

The vendor states that more than 25 million users have used RPost’s track, prove, encrypt, e-sign, certify, share, and protect services for more than a decade in more than 100 countries. Their mission is to help customers worldwide communicate and transact electronically in the most secure, compliant, and productive ways possible and to continuously innovate products to support their evolving needs.

RMail Features

  • Supported: Anti Spam
  • Supported: Anti Virus
  • Supported: Email Attachment Protection
  • Supported: Encryption
  • Supported: Reporting/Analytics
  • Supported: Secure Large File Transfers
  • Supported: Whitelisting/Blacklisting

RMail Screenshots

Screenshot of EMail encryptionScreenshot of Encrypted EmailScreenshot of Large File SharingScreenshot of Receipt AuthenticationScreenshot of Registered ReceiptScreenshot of SideNote

RMail Integrations

RMail Technical Details

Deployment TypesOn-premise, Software as a Service (SaaS), Cloud, or Web-Based
Operating SystemsWindows, Linux, Mac
Mobile ApplicationNo
Supported CountriesEnglish, French, German, Portuguese, Spanish, Dutch, Danish, Italian, Latvian, Lithuanian, Polish
Supported LanguagesEnglish, French, German, Portuguese, Spanish, Dutch, Danish, Italian, Latvian, Lithuanian, Polish

Frequently Asked Questions

RMail is RPost’s software-as-a-service solution that enables business users to track and prove email delivery and encrypt sensitive emails. Available as a MS Outlook add-in and for other popular software platforms, RMail works with any email address without any customization required. RMail provides users with a Registered Receipt email record proving delivery status, time of delivery, and exact content.

RMail starts at $7.

DocuSign, Webroot Email Security Powered by Zix, and PandaDoc are common alternatives for RMail.

The most common users of RMail are from Small Businesses (1-50 employees).
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Reviews and Ratings


Community Insights

TrustRadius Insights are summaries of user sentiment data from TrustRadius reviews and, when necessary, 3rd-party data sources. Have feedback on this content? Let us know!

RMail is a versatile tool that allows users to send encrypted emails, making it the preferred choice for both internal and client communication. Many users find it particularly valuable in industries with strict compliance regulations, such as healthcare. For instance, a managed service provider for dentists relies on RMail to ensure HIPAA compliance when communicating sensitive patient information. The software seamlessly integrates with Outlook or Gmail through Chrome, making it easy to use for various dental practices and internal communication needs.

One of the key use cases of RMail is its ability to address situations where a regular email falls short. Users often rely on the software to confirm the receipt of important documents or legally sensitive information. With RMail's advanced email tracking feature, users can verify that specific emails were delivered and opened by specific times, providing them with peace of mind. This level of security and compliance makes it an ideal choice for both internal and external communications.

Users appreciate that RMail minimizes their efforts while solving their problems effectively. It provides a secure platform to communicate sensitive information, including patients' medical records, ensuring that they are delivered and opened securely. Whether it's securing confidential documents or complying with industry regulations, RMail offers users a reliable solution for their communication needs.

Users recommend purchasing and using RMail for business purposes. They have found RMail to be a great product with good customer service and ease of use. Users suggest trying the different apps available for RMail, particularly the Outlook app. They have found RMail to be an easy way to have one email add-in that offers various features such as email tracking, proof, encryption, and file sharing. Lastly, users believe that RMail is the most feature-rich and affordable email encryption solution in the market. They also recommend trying the free trial of RMail.

Attribute Ratings


(1-7 of 7)
Companies can't remove reviews or game the system. Here's why
Laura Brown | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
I use RMail to send encrypted emails with my company Gmail account.
  • Secures email in a way that is not annoying to recipients.
  • Converts attachments to pdf
  • Provides proof of sending
  • Provides proof of receipt
  • Some Gmail add ons/extensions don't work with RMail.
  • I'm not sure it can be integrated with gmail without Chrome or Outlook.
  • More features would be cool.
RMail is great for sending emails with information that is sensitive but that the recipient is not going to put a lot of work into retrieving. I do psychological evaluations for criminal courts and I use it to send reports to courts and attorneys. I need to use something compatible with HIPAA privacy rules, which courts and attorneys are typically not as concerned about. If they had to use a password or go to an outside web address to retrieve the email, they wouldn't do it. It's also common for an attorney to say they didn't get an email, but I always know if they did or not, and I have clear documentation of it, which is important in legal cases.
Score 10 out of 10
Vetted Review
Verified User
RMail has been thoroughly designed to solve all our problems with little to no effort, it makes us happy to have found a solution that works just like we need.
  • Email branding and customization
  • Compliance
  • Advanced threat protection
  • There is nothing I don't like so far.
Every time any question, suggestion, or idea of improvement has come up to mind, RPost's customer success team has heard us and delivered as soon as possible. There is so much more to RMail, and it keeps growing and improving day by day.
Score 10 out of 10
Vetted Review
Verified User
We use RMail in situations which involve sensitive information such as patients´ medical records, or even internal use. We mainly use RMail to secure our communications, and also to be certain that these emails are being delivered and opened.
  • Email Encryption
  • Email Tracking
  • Secure File Sharing
  • Sometimes translations to other languages do not work well
Now I send everything through RMail. We mostly work with long forms with sensitive information, and it helps me feel secured, knowing that I can send any file without compromising any patient information.
Score 10 out of 10
Vetted Review
Verified User
We needed a secure and compliant way to internally and externally communicate, and work with sensitive information, and we were looking for a service that gave us peace of mind.. and we found it in RMail!
  • Encryption
  • Tracking
  • Large File Share
  • RMail has fulfilled all my expectations, there is no improvement I can see so far.
I find RMail to be the best tool when wanting to communicate with partners. We manage sensitive information, and RMail has helped us secure it and prevent any possible leaks.
Score 10 out of 10
Vetted Review
Verified User
I use RMail in situations where a typical e-mail will simply be insufficient. Examples of such situations include where I need to confirm that a specific document, a notice of a deadline, other notice, or other legally sensitive information was received by one or more recipients, and in certain exceptional cases, that a specific e-mail was delivered and opened by specific times. Essentially, I use it as an advanced e-mail tracker.
  • E-mail tracking.
  • Providing a detailed record of receipt.
  • Providing digital timestamps as to when messages are sent.
  • Recording responses/replies to certain e-mails.
  • Program plug-in crashes on occasion.
  • Issues can arise if your computer's clock is not synced to RMail's time servers.
  • Setup was initially tedious (but has gotten much better since 2019).
The best scenario for when RMail is appropriate occurs when you wish to protect against someone claiming that he/she never received an important e-mail and/or important attachments. A variant of this is where you wish to establish that someone is "ghosting" you or simply has chosen not to respond when he/she should be responding. A situation where RMail is less appropriate occurs when you wish to send a simple, friendly e-mail to someone who is expecting a response. Here, using RMail is overkill.
Dan Gospe | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
We use RMail internally and for our clients. We are a managed service provider to dentists, who have to abide by HIPAA regulations. RMail is the way we prefer to send encrypted email compliantly and securely. It's very easy to use, since it plugs into Outlook or Gmail through Chrome, and it works in all of our dental practices, as well as for our own internal use.
  • Read receipts tell you the time a message was actually opened
  • The electronic signature feature is nice, and usually not included with these types of services
  • Many times, a recipient doesn't need a password to open their email. RMail leverages TLS technology in most cases
  • Recipients do have the option of creating an account, but generally they don't need to
  • Outlook integration is very easy to set up
  • Gmail integration within Chrome is pretty amazing
  • I think the support is a little impersonal. You never get a name, it's always signed "Rpost Support"
  • Sometimes RMail doesn't work with third party apps that utilize Outlook to send messages.
RMail is perfect if you are looking for HIPAA complaint way to send patient information securely. The tracking of each message is required by HIPAA, and it is also supplied by RMail. Also, you can submit an email for electronic signature, which saves a ton of time waiting for snail-mail. Our clients tend to love RMail, because they're usually changing from something else that ends up generating a lot of calls from people who can't open their emails - RMail solves this by utilizing the TLS technology
Joseph Sinclair | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
  • Have used it in legal matters where proof of email receipt was important.
  • It catches recipients' attention. They seem to know that they're on the spot.
  • Very easy to use. Requires no special software. Can use with any email programs.
  • RPost is integrated into leading corporate enterprise email systems but not into ordinary email client software. I would like to see it integrated into my email client (which has less than 2% of the email software market). But it's still easy to use otherwise, so this is a minor point.
  • RPost, as I understand it, keeps no records of one's emails or deliveries. So it's up to me to keep the records (emails sent and received). This isn't a problem for me, but it might be for some people.
It's a very easy system to use without any special software. However, it's worthwhile taking the time to understand the RPost system so that you don't make mistakes, such as not getting and not archiving your RPost verifications. In addition, if you use an enterprise email system, you may find that RPost is already integrated into it.

RPost works well for situations where you would send registered mail, that is, important or legal communications. Since it is considerably less trouble than sending registered mail, one is inclined to use it more often. For instance, for certain transactions you might want to send every email via RPost instead of just the most crucial emails.
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