Procedure 1: Your Postfix queue is empty, and you run Postfix release 20010525 or later

    * Stop Postfix, if it was running.

# postfix stop

    * Execute the mailq command. If there is any output, do not complete this procedure, but use procedure 2 instead.

# mailq

    * Copy or restore the queue to the usual place.

# cd /var/spool/postfix
...restore maildrop, incoming, active, deferred, defer, bounce here...

    * Run the postsuper command. This command will rename queue files so that the file names match their message file inode numbers.

# postsuper



They can't be removed with a postsuper -r ALL and a postfix flush.