MAINT@, POSTMAST@, or POSTMASTER@ .  :)
 
On Sun, 28 Apr 1996 10:11:28 EDT Peter M. Weiss said:
>The NAD (which I believe is only the POSTMASTer account
>at your site) and LISTSERV maintainer can issue
>
>QUIET DEL * userid@node
>
>in the first case.  In the second case, append (NETWIDE.  Or, if
>the userid no longer exists, a current version of your MAILER
>will do the informing of other LISTSERV lists as they generate
>mail to the non-existent account.
>
>/Pete Weiss