Self-hostable software: Mail Delivery Agents (20)

A production-ready containerized mail server with SMTP, IMAP, LDAP, anti-spam, and anti-virus services.

Postal is a complete, self-hosted mail server for websites and web servers.

A one-click, easy-to-deploy mail server appliance for self-hosting email on Ubuntu.

mailcow is a dockerized mail server suite for self-hosted email management.

Mailu is a Docker-based mail server suite with IMAP, SMTP, webmail, and admin features.

A composable all-in-one mail server that handles SMTP sending and receiving, IMAP storage, and related email security protocols.

Mox is an open source self-hosted email server with SMTP, IMAP, webmail, and a web admin interface.

Modoboa is a mail hosting and management platform with a web user interface, administration panel, and webmail.

A setup script for installing and configuring a self-hosted email server on Debian or Ubuntu.

iRedMail is a full-featured mail server solution for deploying self-hosted email services.

Dovecot is a mail server software project with configuration and RFC implementation documentation.

DavMail is a gateway that lets users access Exchange and Office 365 mailboxes with standard mail, calendar, and directory clients.