Free Open source e-mail server for Windows

Anonymous Reader writes “hMailServer is a free, open source e-mail server for Microsoft Windows. It supports all the common e-mail protocols and comes with a easy-to-use COM library that can be used for integration with external software. It also has supports for virtual domains, distribution lists, ClamAV, aliases, distributed domains and much more. E-mail data is stored in a database server, MySQL or MS SQL, depending on your choice.

The hMailServer installation contains a minimal MySQL-installation, so if you don’t already have a database server in your network, MySQL is installed automatically when you install hMailServer.”