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MailEnable vs Zimbra: catalog facts
MailEnable	Zimbra
Freemium A free Standard edition, with paid Professional, Enterprise and Premium editions and…	Paid Sold in several editions under Zimbra's license terms; see the edition comparison.
Windows, Self-hosted	Web, Self-hosted
Webmail, IMAP and Exchange ActiveSync for mobile devices CalDAV and CardDAV for calendars and contacts	Mail, calendar and contacts in one web client Can be run on your own servers
Windows servers only Collaboration features are in the paid editions	Aimed at organisations rather than individuals Running a mail server takes administration effort
Downloadable app, Self-hosted	Self-hosted, Hosted service
Closed 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.