I've seen large amounts of mail in the remote queue from three sources:
1. clients who send mass emails through a SME server (2000 recipients)
2. SME servers trying to bounce messages for non-existent users, and
3. SME servers trying to deliver lots of email to an overloaded "Internal" mail server.
Run this command:
# qmHandle -R | grep From: | lessIn the first & third cases, the queue will list valid local email addresses in the "From: " field:
In the second case, the "From:" field will be "MAILER-DAEMON" for many messages.
If you have lots of messages "From: MAILER-DAEMON":
1. Create a user account named "bounces"
2. Change
E-mail to unknown users from "Return to sender" to "Send to bounces" (E-Mail, Change e-mail delivery settings)
3. Check to see if your version of qmHandle supports "delete by Subject":
# qmHandle look for a line in the results saying:
"-Stext : delete all messages that have/contain text as Subject"
4. If you see the "-Stext" line, delete the existing failure notices from the queue using
# qmHandle -S"failure notice"(Note: I have two versions of qmHandle running: v1.0.0 and v1.2.0. Version 1.2.0 supports "-Stext"; version 1.0.0 does not).