> When creating appointments the resources loose their domain-part. > > Any ideas where to find a solution for this? As we have discussed on IRC, I can reproduce this behaviour with a vanilla Kolab 16 installation. See errors in /var/log/kolab/pykolab.log, and post them to a new bug at https://git.kolab.org/maniphest/task/edit/form/9/ Thanks, Timotheus