/*  Begin Undelivered mail FAQ  */

As a result of the massive number of ISP's using broken or
ill-conceived spam filters, I cut the system mail retention
time from 5 days to 3 days, back in February. I also started
QUIETLY deleting subscriptions that were just rotting in
these queues. This set off a discussion in SJUOWNER in which
the group requested that these deletions be done NON-quietly
and led to the creation of:

http://maelstrom.stjohns.edu/lsmtp-stats/queue.txt

Which shows the pending queues at 8 hour intervals... enough
to spot pending problems if one is interested enough to keep
an eye on it.

Over time it has also become apparent that some entries in
the queue can exhibit a high MRt (Maximum Retries) count. It
appears that these are the result of the user's ISP
explicitly rejecting specific pieces of mail. These too, may
be deleted.
                  
Also information about outbound delay times:

http://maelstrom.stjohns.edu/lsmtp-stats/stats-today.html