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b1gMail vs Axigen: catalog facts
b1gMail	Axigen
Free Free and open source under the GPL-2.0 licence.	Freemium A free edition is available; larger deployments need a paid licence.
Web, Self-hosted	Web, Self-hosted
Runs on shared web hosting with PHP and MariaDB Web admin panel for managing users and the service	Free edition for small deployments Webmail and web administration included
Shared-hosting mode relies on POP3 catch-all mailboxes Community site and documentation are partly in transition from the old website	Proprietary software Main focus is on service providers and businesses
Self-hosted	Self-hosted
Open source	Closed source
License: GPL-2.0	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 October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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