[Pkg-roundcube-maintainers] Bug#727670: Working and developer carddav plugin

[Alexander Reichle-Schmehl]

Hi!

FWIW: I found a working plugin at 
https://github.com/blind-coder/rcmcarddav/. Last commit was 1 year ago, 
but the release download doesn't require you do download other external 
sources, but does contain additional software. But as license is shipped 
and free, it should be possible to package it.

Best regards,
   Alexander