[CentOS] Mail server, IMAP question

Alex Palenschat wrote:
>> Dec 11 17:46:54 kines imap(nando at 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?)