11 Dec
2006
11 Dec
'06
6:42 p.m.
Dec 11 17:46:54 kines imap(nando@kines.dyndns.org): opendir(/usr/libexec/dovecot/imap) failed: Not a directory
My guess (you haven't provided logs or configuration information) is that you have a misconfiguration of your mail delivery agent. It looks like postfix is trying to deliver your mail to a directory that is actually a file. I'd troubleshoot that. If you get nowhere with this I would suggest posting your errors (full logs of the event) and configuration (postconf -n output) to the postfix mailing list.
alex