I've got big problems with IMAP on both of my servers. I get often a message from my customers that the IMAP server could not be reached... I have tried it myself and at first everything worked perfectly, but after a while i also got the error message that the server could not be contacted. It is definitely a software problem, because i've got two servers on two different locations that show the exact same problem. I can't seem to find anything in the log files.. Better said, i can't seem to find any log files generated by courier?! Could somebody please help me?