>I just want to report an unusual bounce situation on one of my lists...
 
>This person was on my list as [log in to unmask] But the mailer on
>the subscriber's end was bouncing the errors back as
>UNKNOWNORILLEGALUSER:5BDC002"@SC.MARICOPA.EDU.
 
This unusual i.e., non-standard RFC821 bounce is "usual" for
this system (and other systems using the same kind of broken
software).
 
IMO 300 bounces in 4 days since like a waste of CPU time, disc
storage, and network bandwidth.  Why not 25 bounces?
 
/Pete Weiss at Penn State