Compare software

Modoboa vs Mailu: catalog facts
Modoboa	Mailu
Free Free and open source, self-hosted.	Free Free and open source.
Linux, Self-hosted	Linux, Self-hosted
Simplified web UI lowers the barrier to running a full mail platform Open source and self-hosted, keeping mail data under your control	Webmail and admin interface included Per-domain delegation and quotas
Requires a Linux server to install and maintain Smaller community than some larger self-hosted mail projects	Requires Docker Releases are infrequent
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account 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 24, 2026

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