This one:
 
    97 12/28 01/08 [log in to unmask]
 
will never get deleted because the actual address subscribed to your
list is [log in to unmask] .  99% probablility. :)  The problem is that
the MAIL-E2B.GNN.COM machine isn't sending back the original address
as the bouncer.  So LISTSERV receives the bounce but can't do anything
with it because [log in to unmask] is not subscribed to the list
and LISTSERV doesn't do "fuzzy matching" to decide that the slightly-
different address on the list is actually the culprit...
 
Now, if [log in to unmask] isn't on your list, then the mail is getting
forwarded to [log in to unmask] from some other address.  And that's where
tracking things down gets hairy.  Don't you have subscription renewal
on your list, e.g., "Renewal= 6-Monthly" or some such?
 
Nathan