In some very real sense LISTSERV does offer such an option,
but ONLY for comformant mail transfer agents.  Here is one of
my list's AUTO-DEL keywords:
 
* Auto-Delete= Yes,Semi-Auto,Delay(3),Max(25)
 
Here is an example distribution:
 
Date:         Sun, 19 Nov 1995 00:00:53 -0500
From:         "L-Soft list server at PSUVM (1.8b)" <[log in to unmask]>
Subject:      FINAID-L: Daily error monitoring report
To:           [log in to unmask]
 
The following 3 subscribers are currently being monitored:
 
Err First Last  Address
--- ----- ----- -------
  6 11/16 11/16 Bill Watson <[log in to unmask]>
                Last error: 550 <[log in to unmask]>... User unknown
 
  5 11/16 11/16 Margaret Beahan <[log in to unmask]>
                Last error: Mailer pilot.msu.edu said: "550
                            <[log in to unmask]>... User unknown"
 
  1 11/17 11/17 David Ximenez <[log in to unmask]>
                Last error: Mailer LONESTAR.JPL.UTSA.EDU said: "550
                            <[log in to unmask]>... User unknown"
 
Err=   Number of delivery errors received thus far
First= Date first delivery error was received (mm/dd)
Last=  Date of most current delivery error (mm/dd)
 
Subscribers will be automatically deleted from the list when delivery errors
have been  reported for  a period  of 3 days  or more,  or when  25 delivery
errors have  been received,  whichever occurs  first. Monitoring  will cease
after 4 days without any reported error.
 
Note: manually deleted subscribers may remain on the monitoring report under
an alias address. Such entries will expire eventually; you do not need to do
anything about them.
 
--  co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L
URL:mailto:[log in to unmask]
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