Would you like to contribute on a language or add a Zimlet? Perfect! We encourage your contributions that help advance Zimbra's quality and innovation.
The Zimbra Contributor Agreement gives Zimbra and the contributor joint copyright interests in the code. You need only sign the Zimbra Contributor Agreement once in order to cover all changes that you might contribute to any Zimbra-sponsored open-source project. If you've already signed the Zimbra Contributor Agreement in order to contribute to a Zimbra-sponsored project then you do not need to sign it again in order to contribute to other projects requiring the Zimbra Contributor Agreement.
A Zimbra Contributor Agreement can be remitted for acceptance by emailing a scanned, completed, signed copy to contributions [at] zimbra [dot] com or to Zimbra, Inc., Attn: Legal, 3000 Internet Blvd., Suite 200, Frisco, Texas 75034. Only physically signed documents or copies of physically signed documents will be accepted as binding agreements. Copies of physically signed documents include faxed or scanned copies of physically signed original documents. No electronically generated 'signatures' will be accepted.
If you already have code, a Zimlet, theme, or translation; just email us at contributions [at] @zimbra [dot] com and we can help with next steps. You can also contact us here if you have any questions.
If you are looking to contribute and don't have something already complete here are some tips on where to start:
Check out our Zimbra Contributions FAQ page.