qmail queueing messages indefinately.

[systems]

[root@smtp2 /var/log/mail/send]# /var/qmail/bin/qmail-qstat
messages in queue: 3885
messages in queue but not yet preprocessed: 0


I am not sure what is causing this, can anyone give me some insight or suggestions on how to force the queue to send?

[matt]

What happens when you issue "qmail doqueue" ?