Docker Mailserver (DMS) is an open-source production-ready full stack mail server that you can self-host in a Docker container

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This is a simple containerised mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.). Only configuration files, no SQL database. Easy to deploy and upgrade. I see it is often recommended to others, as I noticed in a Lemmy forum today.

It is receiving regular updates and has quite extensive documentation. It has over 11,000 likes on Github.

See https://github.com/docker-mailserver/docker-mailserver

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