Self-hostable software: Communication - Email - Complete Solutions

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database.

A complete and fully featured mail server for use by websites & web servers.

Turns any Ubuntu server into a fully functional mail server with one command.

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

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

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

Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps.

All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.

Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, Internationalization (IDNA), automatic TLS with ACME and Let's Encrypt, account autoconfiguration, and webmail.

Email forwarding service for creating aliases.

Mail hosting and management platform including a modern and simplified web user interface.

Scalable no-SPOF IMAP/POP3 mail server.