Hi @bizzor and @fbartels,
fetchmail.log exists if it is enabled in /etc/fetchmailrc.
Change the line with “set no syslog” to “set syslog”. (I am not sure if this change survives a rebuild of /etc/fetchmailrc. I expect that there is a template for fetchmailrc somewhere. To make the change permanent you have to find the template and change it.)
# grep syslog /etc/fetchmailrc
set no syslog
check the status and restart the fetchmail daemon
# /etc/init.d/fetchmail status
...
# /etc/init.d/fetchmail restart
...
# /etc/init.d/fetchmail status
...
Regards Markus.