2 PO's, 1 Domain, 5.5e last service pack applied. Recently a user created a vacation rule while I was also away on vacation. The users mailbox replied to an outside address which also had a autoreply set. This created a loop and while it did not crash my system it left thousands upon thousand of emails in this person's mailbox. I ran an expire and reduce to clean up this person's mailbox. I can't tell if the expire and reduce is still running or if it has failed. The PO is still processing other mail, should I just leave things alone until I get an admin message on the maintenance, or restart the poa? And how can you stop this kind of thing from reoccurring?