Compare software

grommunio vs MailEnable: catalog facts
grommunio	MailEnable
Freemium Open source, with paid plans listed on the pricing page.	Freemium A free Standard edition, with paid Professional, Enterprise and Premium editions and…
Linux, Web, Self-hosted	Windows, Self-hosted
Native MAPI, EWS and EAS support for Outlook and mobile clients Mail, calendars, chat, video and files on one platform	Webmail, IMAP and Exchange ActiveSync for mobile devices CalDAV and CardDAV for calendars and contacts
Running a groupware server requires administration skills Some features may depend on paid plans	Windows servers only Collaboration features are in the paid editions
Self-hosted, Hosted service	Downloadable app, 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.