Alternatives to Zimbra
Zimbra is a popular software application. Here you can find self-hosted alternatives that offer similar functionality while giving you more control over your data and privacy.
Found 11 self-hosted alternatives
Mailcow
Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration.
Modoboa
Mail hosting and management platform including a modern and simplified web user interface.
Stalwart Mail Server
All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.
wildduck
Scalable no-SPOF IMAP/POP3 mail server.
Dovecot
IMAP and POP3 server written primarily with security in mind.
Roundcube
Browser-based IMAP client with an application-like user interface.
SquirrelMail
Another browser-based IMAP client.
Citadel
Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.
Group Office
Enterprise CRM and groupware tool. Share projects, calendars, files and e-mail online with co-workers and clients.
SOGo
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.
Tine
Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier.