From sub usage() in /webmail-batch/tools/purge.pl:

#-----------------------------------------------------------------------------
# To be implemented:
# --purge-trash=n Purge messages in the trash that are n days old
# --purge-nonvalidated Purge users that are not validated.
#

Is --purge-trash working correctly? If not, when is it going to be implemented? We have about 100,000 messages in users' trash folders that we would like to start purging automatically every night.

If this script can't do the job, do you have any other suggestions?