sendmail: clientmqueue directory storing massive messages, not being cleared

[Chris Byrnes]

I just got done sending 42,000 e-mail messages that were rotting away in
/var/spool/clientmqueue.  I figured out the command to do so was
"sendmail -L sm-msp-queue -Ac -q30m".

I never even knew that directory existed.  I thought everything queued was
kept in /var/spool/mqueue (which, I might add is being taken care of on a
regular basis.. just seems the problem lies in the /var/spool/clientmqueue
directory).  Is this a new thing that I'm stupidly unaware of?

Can you please explain the difference between /var/spool/clientmqueue and
/var/spool/mqueue and why one seems to be taken care of regularly, but the
other had 42,000 unsent messages?  When I start sendmail, I've always just
run "/usr/sbin/sendmail -bd -q60m -h10 -R full".  Do I need to do something
differently?

Please cc: as I am not subscribed.  Thank you in advance for your help.


Chris