How to clear Qmail mail queue?

How to clear Qmail mail queue?

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NAME
     qmail-clean - clean up the queue directory

SYNOPSIS
     qmail-clean

DESCRIPTION
     qmail-clean reads a cleanup command from descriptor 0,  per-
     forms  the  cleanup, prints the results to descriptor 1, and
     repeats.

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1. First of all check the number of messages from the queue using the qmail-qstat tool:

[root@CSSW2013NOC3 ~]# /var/qmail/bin/qmail-qstat
messages in queue: 22463
messages in queue but not yet preprocessed: 22

2. To remove the messages from the queue ALWAYS stop the qmail service first, to avoid having to reconfigure it again:

[root@CSSW2013NOC3 ~]#service qmail stop

3. Once the service is stopped execute the following commands one by one (based on the number of files stuck in the queue, this may take a while):

#find /var/qmail/queue/mess -type f -exec rm {} \;#find /var/qmail/queue/info -type f -exec rm {} \;#find /var/qmail/queue/local -type f -exec rm {} \;#find /var/qmail/queue/intd -type f -exec rm {} \;#find /var/qmail/queue/todo -type f -exec rm {} \;#find /var/qmail/queue/remote -type f -exec rm {} \;

4. Finally start the mail service and recheck the queue to ensure that all the messages have been removed:

[root@CSSW2013NOC3 ~]#service qmail start

To automate this process:: I have two scripts available (basically are performing the same operations as above). For those that receive oversized file truncating errors please use the 2nd script – it takes a little longer but gets the job done.

wget http://dragos.fedorovici.com/qmailclear.sh
wget http://dragos.fedorovici.com/qmailclean.sh
[root@CSSW2013NOC3 ~]$sh qmailclean.sh
[root@CSSW2013NOC3 ~]#sh qmailclear.sh