Open Source Communication - Email - Complete Solutions Software
Found 19 self-hosted alternatives in this category.
b1gMail
Complete email solution that runs on any webspace with PHP and MariaDB. It supports POP3 catchall mailboxes and can also integrate with Postfix or b1gMailServer if you're running your own server.
DebOps
Your Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts
docker-mailserver
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database
Dovel
SMTP server that sends and receives emails according to a simple configuration file, with an optional web interface that you can use to browse your emails
emailwiz
Luke Smith's bash script to completely automate the setup of a Postfix/Dovecot/SpamAssassin/OpenDKIM server on debian
Maddy Mail Server
All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command
Mailcow
Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration
Modoboa
Mail hosting and management platform including a modern and simplified web user interface
Mox
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
Postal
Complete and fully featured mail server for use by websites & web servers
Simple NixOS Mailserver
Complete mailserver solution leveraging the Nix Ecosystem
SimpleLogin
Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps
Stalwart Mail Server
All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features