[RCD] Upgrading the Roundcube License

Georg C. F. Greve greve at kolabsys.com
Mon Dec 5 11:30:26 CET 2011

Dear Pedro,

it is not clear to me how a license that explicitly says it is okay not to 
contribute back would increase the numbers of contributions back to Roundcube.

>From our perspective as a commercial entity, we have contributed quite a bit 
of code for the 0.7 release, and might not have done that under a weaker 
license, as we prefer an even footing for all contributors.

So we would likely not agree to a less protective or balanced license.

That said, I don't think that is even a theoretical option. Roundcube 
incorporates some major third-party contributions under the GPL which are not 
easily relicensed, and obtaining permission from each and everyone one of the 
upstream contributors is likely an impossible undertaking.

You are of course welcome to re-write all those parts under a BSD license, but 
as a commercial entity we would probably hesitate to contribute to that effort.

Best regards,

Georg C. F. Greve
Chief Executive Officer

Kolab Systems AG
Zürich, Switzerland

e: greve at kolabsys.com
t: +41 78 904 43 33
w: http://kolabsys.com

pgp: 86574ACA Georg C. F. Greve

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