hMailServer is a free, open source mail server for Windows. It has support for SMTP, POP3, IMAP, virtual domains, anti virus scanning, distribution lists and much more. It comes with a great COM library that easily can be used for integration. Data is stored in a database server, MySQL or MS SQL, depending on your choice.

hMailServer | Download: Unstable – hMailServer 4.4 - Build 270 | Stable - hMailServer 4.3.1 - Build 253

hMailServer, Email, Server, Software, Open Source