Compare software

Mailu vs chasquid: catalog facts
Mailu	chasquid
Free Free and open source.	Free Free and open source under the Apache 2.0 licence.
Linux, Self-hosted	Linux, Self-hosted
Webmail and admin interface included Per-domain delegation and quotas	Secure defaults that prevent open relays Virtual domains with per-domain users and aliases
Requires Docker Releases are infrequent	Aimed at individuals and small groups rather than large deployments Needs Dovecot or similar for mailbox access
Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
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 October 2, 2026

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