I (as part of the pkg-giraffe team) intent to orphan src:kopano-webapp.

I don't have the time to maintain this package any longer.

kopano-webapp-files, which is the only binary package build up from
kopano-webapp-plugins-files, is depending from kopano-webapp.
Maintenance isn't difficult and rather straight forward.

The pkg-giraffe-team is happy to offer help and guidance for interested
people which want to work on kopano-webapp-plugin-files within Debian.

Regards
Carsten