Not sure how 'answered' this question is since 3rd, but since I was
having this problem this week thought I'd pitch in.
I used
sudo -u cyrus /bin/sh
which saves on forgetting to change it back (and has the advantage of
not opening anything up further than required in the mean time).
On 16/10/1
I've tried this on the Kolab list and ServerFault with no result, so I'm
hoping someone here can help.
I'm running a Kolab 3.4 server and Cyrus doesn't seem to be removing
messages correctly. I've got full Trash directories on the filesystem
from right back to when I brought the server into use