New - Free Training Available Now!

Video-Based Technical Training For Our Award Winning Email Security Platform

Email Threat Protection, Archiving & Compliance for Microsoft 365, Microsoft Exchange & other Email Platforms

Windows and macOS Email Client for MDaemon

Now integrated in MDaemon version 24.5.1 and higher
A fully-featured desktop and mobile email client for companies of all sizes, with productivity tools far beyond email.

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Data Query Service (DQS)

Real-Time Threat Intelligence Layer

for MDaemon® Email Server

Important Announcements and Updates (Click To View)

⚠️ April 15, 2025 Critical Update for all supported versions of MDaemon Email Server. Click here for details.
New releases in 2025 - available for download now: MDaemon 25.0.2 | Security Gateway 10.5.3
MailStore 25.1 and hiqher requires an update to Firebird4. Click here to learn more.
We have revised our renewal pricing for some products. Click here to learn more.

MDaemon®
Email Server

TRUSTED
EXCHANGE ALTERNATIVE

Email Security and Encryption
Clustering and High Availability
Email Archiving Included
Collaboration tools
On-Premises, Virtual or Hosted Deployment

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SecurityGateway™
for Email

SECURE
EMAIL GATEWAY

Microsoft 365, Exchange Email Protection
Compare to Barracuda, Mimecast, & Others
Easy Set-up and User Management
Email Quarantine, Archiving and More
On-Premises, Virtual or Hosted Deployment

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Easy to Use Email, Collaboration and More

Take a Quick Tour of the Most Popular Features

Why IT Professionals Use Our Software

McKenzie Medical Center - 14 Years and Going Strong!

"We have been with MDaemon for 14 years. It has proven to be a stable and reliable platform. The content filters are very flexible. I have an email server that stops most junk and malicious emails from reaching my users. The Instant Messaging is an integral part of our internal communications. It has Calendaring, Tasks, Notes, all configurable. It's a very affordable alternative to more expensive systems."

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County of Cheshire - Comprehensive Mail, Management and Value!

"MDaemon gives us visibility into our email usage and control over the service we present to our users. Designed to be customizable, MDaemon presents us with the flexibility we need to make email work the way we need it to. The logs are comprehensive and make diagnosing email problems in a reasonable time possible."

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Eron Law - We've Been Using MDaemon for 7 Years!

I would say the most helpful thing has been the cost. We turned to MDaemon when noticing the cost of the Microsoft Exchange Server. We run a busy law firm and this product fits the bill perfectly.

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ALWITCO - Best Email Security Solution Hands Down!

Very easy to customize to fit our requirements. Most other email security software is a one size fits all type of product. Unfortunately, every company has different requirements, Security Gateway makes an extremely flexible package. That is easy to use and set up.

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