Self-Hosted Index

Alternatives

Fastmail

Well regarded hosted email, still someone else's servers and someone else's roadmap.

4 self-hosted replacements in this index, ranked by GitHub stars in the dataset.

Replacements

  • 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.

    19,710 stars Active

    26 Oct 2026 v16.0.1

  • Mailcow

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

    13,722 stars Active

    21 Oct 2026 2026-10

  • Roundcube

    Browser-based IMAP client with an application-like user interface.

    7,251 stars Active

    25 Oct 2026 1.7.5

  • Poste.io

    Full-featured solution for your Email server. Native implementation of last anti-SPAM methods, webmail and easy administration included. Free tier available.

    No repository figures recorded