Alex Palenschat wrote:
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 don't know what is going on but that is not a log entry from postfix. Are you trying to say that postfix is trying to deliver to a directory called /usr/libexec/dovecot/imap based on the above? (where is the rest of this thread?)