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Axigen vs b1gMail: catalog facts
Axigen	b1gMail
Freemium A free edition is available; larger deployments need a paid licence.	Free Free and open source under the GPL-2.0 licence.
Web, Self-hosted	Web, Self-hosted
Free edition for small deployments Webmail and web administration included	Runs on shared web hosting with PHP and MariaDB Web admin panel for managing users and the service
Proprietary software Main focus is on service providers and businesses	Shared-hosting mode relies on POP3 catch-all mailboxes Community site and documentation are partly in transition from the old website
Self-hosted	Self-hosted
Closed source	Open source
License not stated	License: GPL-2.0
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 1, 2026	Official website Full listing and sources Checked October 2, 2026

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