The Zeta Alliance

An alliance of users, partners, and contributors for the Zimbra Email & Collaboration Platform
to help ensure its long term success and health as an open source project.

Zimbra.org Extensions Github


Zeta Alliance Mailing List Crowdfunder

We have started developing! See the Zeta Alliance Mailing List Crowdfunder.

See the survey results.

Integration with Nextcloud

Add Nextcloud, ownCloud or any WebDAV server to your Zimbra webmail.


WebDAV Extension

Support for OpenPGP

PGP Email encryption for Zimbra mail.



OpenPGP Zimlet

Zimbra Share Toolkit

Convenient and easy creation of mailbox shares and other stuff to get family mailbox like features.

Zimbra Share Toolkit