Alternatives to Mailu
A full-featured self-hosted mail server delivered as a set of Docker images. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Mailu
A full-featured self-hosted mail server delivered as a set of Docker images.
Replacements
Listings that take over the same core job as Mailu.
docker-mailserver
A complete mail server with SMTP, IMAP, antispam and antivirus, packaged as a single container.
docker-mailserver packs the whole mail stack with antispam and antivirus into a single container, but has no webmail or graphical admin interface, unlike Mailu.
Mox
An all-in-one open-source mail server for low-maintenance self-hosted email.
Mox is a single program covering SMTP, IMAP and webmail with automatic TLS and built-in DKIM, SPF and DMARC, and it does not require Docker.
Also worth comparing
These listings name Mailu as their own alternative, so the relationship runs both ways.
Cyrus IMAP
An open-source email, contacts and calendar server with IMAP, JMAP, CalDAV and CardDAV support.
Mailu delivers a full mail server as Docker images with webmail, an admin interface and antispam, replacing Cyrus with a container-based stack.
Dovecot
An open-source IMAP and POP3 server that stores mailboxes and serves them to mail clients.
Mailu replaces a hand-built IMAP setup with a complete Docker mail server including webmail, admin interface and antispam.
Similar software
Related functionality, not a direct replacement.
Postfix
A widely used open-source mail transfer agent for routing and delivering email.
Exim
An open-source mail transfer agent for Unix systems with flexible routing and mail checking.
OpenSMTPD
A free SMTP server from the OpenBSD project for sending and receiving email.
Google Postmaster Tools
Google's web dashboard for checking a sending domain's reputation and mail deliverability to Gmail.
