fetchmail doesn't want to fetch my messages
 

i've installed fetchmail (version 6.2.5-r1) and configured it so that it connects with my remote pop3 server. now as i'm trying to fetch my messages (using fetchmail -a) it says:

Both fetchall and keep on in deamon mode is a mistake.

What the hell is wrong? i've using exim as a SMTP server on port 25.

The combination of keep and fetchall in daemon mode would result in a situation where periodiacly fetchmail would run, download all the messages and keep them on the server. Over and over again, resulting in many duplicate messages.
Try fetchmail -N -v if you really want this.