hMailServer

hMailServer

Free open source email server for Windows

Description

A small company or studio wants mail on its own domain, but hosted business mail charges per seat every year, and Postfix plus Dovecot on Linux means wrestling with config files. hMailServer is a free, open source mail server for Windows: add your domain and accounts in a graphical admin tool and SMTP, POP3 and IMAP are ready for Outlook, Thunderbird or a phone.

It looks plain but covers the essentials: multiple domains, aliases, forwarding rules, anti-spam, virus scanning, and scripts that run custom logic when mail arrives or leaves. Plenty of small teams have run it for over a decade.

Features



Full protocol support:One service provides SMTP, POP3 and IMAP, so common mail clients connect directly.

Multiple domains:Host several domains on one server, each with its own accounts, aliases and distribution lists.

Rules engine:Rules with AND and OR conditions move, forward or delete mail by sender, subject and more.

Virus protection:Hook in an antivirus scanner to delete infected mail and notify both sides, and block attachments such as BAT or EXE.

Anti-spam:DNS blacklists, SPF checks, greylisting and other spam defenses.

Scripting:COM API and event scripts run your own handling when messages are received or sent.