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Mailcow vs Modoboa: catalog facts
Mailcow	Modoboa
Free Free and open source, self-hosted.	Free Free and open source, self-hosted.
Linux, Self-hosted	Linux, Self-hosted
Docker packaging makes deployment and updates more manageable Includes a full web admin panel and SOGo webmail out of the box	Simplified web UI lowers the barrier to running a full mail platform Open source and self-hosted, keeping mail data under your control
Requires Docker and server administration knowledge to run Resource requirements are higher than a single lightweight mail daemon	Requires a Linux server to install and maintain Smaller community than some larger self-hosted mail projects
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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