🚀 go-pugleaf

> [ INN is forwarding this article despite attempts in the newsfeeeds
> file to limit its propagation ]

> Path: wintermute.phys.psu.edu!atlantis.psu.edu!psuvax1!psuvm!lrl
> Organization: Penn State University
> Date: Mon, 21 Dec 1992 14:11:44 EST
> From: Linda Littleton <LRL@psuvm.psu.edu>
> Message-ID: <92356.141144LRL@psuvm.psu.edu>
> Newsgroups: psu.ed.general
> Subject:: newgroup psu.ed.general
> Control: newgroup psu.ed.general
> Approved: <LRL@PSUVM>
> Lines: 1

From the innd(8) man page:

     Sites may explicitly have the ``control'' newsgroup in their
     subscription  list,  although  it is usually best to exclude
     it.  If a control message is posted to a  group  whose  name
     ends  with  the  four characters ``.ctl'' then the suffix is
     stripped off and what is left is used  as  the  group  name.
     For  example,  a cancel message posted to ``news.admin.ctl''
     will be sent to all sites that subscribe to  ``control''  or
     ``news.admin.'' Newgroup messages receive additional special
     treatment.  If the message is approved  and  posted  to  the
     name  of  the  group being created, then the message will be
     sent to all sites whose subscription  patterns  would  cause
     them to receive articles posted in that group.

Your wildcard entry is causing the newgroup to propagate offsite.
Adding "!control" to your newsfeeds entry should fix things.