Welcome

hMailServer is a free, open source, e-mail server for Microsoft Windows. It's used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

It supports the common e-mail protocols (IMAP, SMTP and POP3) and can easily be integrated with many existing web mail systems. It has flexible score-based spam protection and can attach to your virus scanner to scan all incoming and outgoing email.


hMailServer

Free & Open Source

Licensed under AGPLv3, hMailServer can be used for free in most commercial scenarios. It's source code is available for anyone to read or extend at GitHub.

Built-in Anti-Spam

hMailServer comes with a set of built-in anti spam features such as SPF, SURBL. It can also be integrated with 3rd party anti spam systems such as SpamAssassin and ASSP.

Webmail

Any webmail system which supports IMAP and SMTP can be used with hMailServer. RoundCube and SquirrelMail are popular webmail systems which are often used with hMailServer.

Contribute

PayPal Logo Want to contribute to the hMailServer project? Help people in the end-user forum or donate money. The latest donations comes from Billarga, Cityline AG, CH-8630 RĂ¼ti and Jan Vinten.
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Newsletter

There are three hMailServer news letters you can susbscribe to: The release news letter, the build news letter and the security news letter.