#1
Mail-in-a-Box
Easiest to deployCC0One-click self-host email server. Webmail, calendars, contacts. Ubuntu only.
github.com/mail-in-a-box/mailinaboxAll self-hosted picks
Self-host · own your data
Self-Hosted Email
Self-hosting email gives you full control of inbox data, no scanning by Gmail/Outlook, and unlimited aliases. Setup is harder than other self-hosted apps — DNS, deliverability, anti-spam all matter. Below are the picks that make it bearable in 2026.
#2
Modoboa
Best admin UXISCPostfix + Dovecot with a beautiful admin UI. Multi-domain support.
github.com/modoboa/modoboa#3
Mailcow
Most feature-completeGPL-3.0Docker-based mail server with SOGo webmail, anti-spam, push.
github.com/mailcow/mailcow-dockerized#4
iRedMail
Most stable / matureGPL-3.0Battle-tested traditional Postfix/Dovecot stack with all tools pre-configured.
github.com/iredmail/iRedMailFull curator takes available
Lifetime members get deep curator takes per repo + 13 stack bundles. ₹99 once.
See pricing