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grommunio vs Axigen: catalog facts
grommunio	Axigen
Freemium Open source, with paid plans listed on the pricing page.	Freemium A free edition is available; larger deployments need a paid licence.
Linux, Web, Self-hosted	Web, Self-hosted
Native MAPI, EWS and EAS support for Outlook and mobile clients Mail, calendars, chat, video and files on one platform	Free edition for small deployments Webmail and web administration included
Running a groupware server requires administration skills Some features may depend on paid plans	Proprietary software Main focus is on service providers and businesses
Self-hosted, Hosted service	Self-hosted
Open source	Closed 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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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