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Zimbra FOSS Two-Factor Authentication
2,020 raised
101% of €2k goal
14 contributors
0 days left
Ended Mar 4, 2019

Two Factor Authentication for Zimbra open-source edition

This is a Zeta Alliance crowd funder for building an extension to add two factor authentication to Zimbra open source edition.


When installed on your server, you can enable 2FA on a per domain basis. Once enabled, each user will have the option to enable 2FA on their account. This allows for users to have 2FA or legacy authentication on the enabled domain.

Tech details

The work will consist of the following parts:

  1. A patch to the login screen to support entering the 2FA code.
  2. PrivacyIDEA and PrivacyIDEA LDAP Proxy docker containers to run and maintain the 2FA toekens on your Zimbra*
  3. Zimlet for integrating in the web-ui of Zimbra (SOAP based) with extension on the server (java soap api)
  4. Install documentation
  5. All released under GNU GPLv2.
  6. Admin UI Zimlet patch to enable the reset password feature on external authentication.


Good news, we have added App Passcodes to the Zimbra FOSS 2FA. You can generate passcodes for apps that do not support Two Factor Authentication. This can be your email app on your phone or the email client on your laptop (Outlook/Thunderbird).

So that way you can use 2FA for all Human log-ins, but still use ActiveSync, LDAP, WebDAV and all other protocols!


Funding details

Above (under tech details) will be realized if the funding reaches around EUR 1800. 

Delivery is around March 2019.


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