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. Extensions Wiki  Github

Zeta Alliance RMail Zimlet

RMail integration in Zimbra by Zeta Alliance.
Looking to integrate a third party service in Zimbra? Contact us at

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