I noticed there are thousands messages like this in /var/log/syslog (I assume one for every mail):
midb[18240]: E-1222: oxcmail_export of msg /var/lib/gromox/user/1/0:2392970 failed
Any idea what is causing this? It started this monday. Nothing special happened this monday, could just have been a standard update. I also did not notice a problem at the clients so far.
Best regards
Stefan