Error in mailscanner with ID's duplicated

[Matt Kettler]

Dario Hernan wrote:
> Hi all! I have a problem with mailscanner, in the maillog file appears
> errors of unlinking
> 
> this is the error:
> 
> grep Unlinking /var/log/maillog
> Sep 23 08:32:27 xxxxxx MailScanner[16352]: Unlinking
> /var/spool/mqueue.in/qfl8NDW7N0015922 failed: No such file or
> directory
> Sep 23 08:32:27 xxxxxx MailScanner[16352]: Unlinking
> /var/spool/mqueue.in/dfl8NDW7N0015922 failed: No such file or
> directory
> 
> I was looking in google, but all posts talk about the lock type.
> in my conhnfiguration the lock type is posix.
> 
> sendmail version is 8.13.8
> SpamAssassin version 3.2.1
> the version of the mailscanner is the lastest

Check your MailScanner.conf. Is Lock Type = posix?  (you should only need flock 
for 8.12.x versions of sendmail)