hMailServer

Looking for a free and robust solution to manage your own email server on Windows? hMailServer is open-source software that allows you to easily create, configure, and administer a complete, secure email server that supports standard protocols.

Warning: hMailServer is no longer maintained by its author and the last stable version is from 2023.

Reliable and Compatible Mail Server

You can use hMailServer as a free open-source mail server for Microsoft Windows, compatible with standard mail protocols such as IMAP, SMTP, and POP3. This allows you to send, receive, and manage your emails efficiently, and easily integrate with popular mail clients and webmail systems like RoundCube or SquirrelMail. Using these protocols ensures smooth communication with most existing mail software.

Advanced Spam and Virus Protection

hMailServer includes robust features to secure your email communications. You benefit from a flexible anti-spam filtering system based on message scoring (including SPF, SURBL, DNSBL, greylisting, DKIM mechanisms). It can also connect to external antivirus scanners such as ClamAV to scan all incoming and outgoing emails. This dual protection helps you avoid unwanted emails and viral threats.

Customizable Management and Administration

This program offers you various options for detailed management of your domains, accounts, and messages: support for multiple domains, aliases, distribution lists, size quotas for domains and mailboxes, blocking attachments by extension, and custom server-side rules. Additionally, you can automate tasks with a COM API that allows scripting in VBScript or JScript. SSL configuration is also available to secure connections. These tools simplify administration and advanced customization of your mail server.

In summary, hMailServer is a powerful and flexible solution that enables you to manage your emails efficiently while ensuring security and broad compatibility with industry standards.