Virtusertable Entry Failure

I received notice that one of my groups had been compromised by a spammer
sending email to [email protected]

I added a line to /etc/mail/virtusertable:

  [email protected] error:nouser Invalid User

which works. Unfortunately, it blocks ALL email to the group. The alias is:

  listname:   "|/opt/majordomo-1.94.5/wrapper resend -l listname
listname-outgoing,nobody"
  owner-listname:     [email protected],
  listname-owner:     [email protected],
  listname-outgoing:  "|/usr/local/bin/bulk_mailer -domain ourldsfamily.com
-maxdomains 14 -maxrcpts 4 [email protected]
/opt/majordomo-1.94.5/lists/listname", listname-archiver, listname-digestify
  listname-approval:  listname-owner
  listname-archiver:   "|/opt/majordomo-1.94.5/wrapper archive2.pl -f
/opt/majordomo-1.94.5/archives/listname/listname -a -M"
  listname-digestify: "|/opt/majordomo-1.94.5/wrapper digest -r -C -l
listname-digest listname-digest-outgoing,"
  listname-digest:    listname
  listname-owner-digest:     listname-owner
  listname-digest-approval:  listname-owner
  listname-digest-outgoing:  :include:/opt/majordomo-1.94.5/lists/listname-digest

There are some linewraps so I've added 2 spaces at the beginning of each line
to make it more readable.

My question: What Do I Do To Fix This and Stop The Spammers, too?

TIA

-- 
karl
     _/  _/      _/      _/_/_/       ____________   __o
    _/ _/       _/      _/    _/     ____________  _-\<._
   _/_/        _/      _/_/_/                     (_)/ (_)
  _/ _/       _/      _/           ......................
 _/   _/ arl _/_/_/  _/ earson    [email protected]
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Senior Consulting Sys/DB Analyst
http://consulting.ourldsfamily.com
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