wildduck

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.)...

Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing...

Complete and fully featured mail server for use by websites & web servers

All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features

Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern...

Simple yet full-featured mail server as a set of Docker images