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docker-mailserver vs Dovecot: catalog facts
docker-mailserver	Dovecot
Free Free and open source.	Free Community Edition is free and open source; Dovecot Pro is a paid commercial product.
Linux, Self-hosted	Linux, Self-hosted
Whole mail stack in one container Built-in antispam and antivirus	Very widely deployed Standards-compliant IMAP and POP3
No webmail or graphical admin interface Needs Docker and DNS knowledge to run well	Handles mailbox access only; needs a separate MTA for sending Configuration takes mail server experience
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.