HMailServer information

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hMailServer

hMailServer Administrator Screenshot
Developer(s)	Martin Knafve
Initial release	2002; 22 years ago (2002)
Final release	5.6.8 (Build 2574)[1] / 10 March 2021; 3 years ago (2021-03-10)
Repository	github.com/hmailserver/hmailserver
Written in	C++, C#
Operating system	Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows Server 2008 R2, Windows 7, Windows Server 2012, Windows Server 2012 R2, Windows 10, Windows Server 2016
Type	Mail transfer agent
License	AGPL
Website	hmailserver.com

hMailServer was a free email server for Windows created by Martin Knafve. It ran as a Windows service and includes administration tools for management and backup. It had support for IMAP, POP3, and SMTP email protocols. It could use external database engines such as MySQL, MS SQL or PostgreSQL, or an internal MS SQL Compact Edition engine to store configuration and index data. The actual email messages were stored on disk in a raw MIME format. As of January 15th, 2022, active support and development were officially halted,^[2] although version 5.6 will continue to receive updates for critical bugs.

Common features such as multiple-domain support, aliases, catch-all and basic mailing lists were present. Users could be authenticated both against the local hMailServer user system and against an external Active Directory.