[Mailman-Users] Ported newsgroup security question

[Mike Avery]

Not too long ago, I was beaten up by some SpamCop folks because 
someone sent a spam to a mailing list I run that is ported to a usenet 
newsgroup.

When I set up my 2.0.12 Mailman server, I looked at the security 
available and found that trying to restrict posting to members of the 
mailing list meant that messages from the newsgroup were rejected 
instead of being passed on to the mailing list.  I asked this mailing list 
asked if security could be tightened at that time and was told no, it 
couldn't.  At least not then.

After getting beaten up by Spamcop, I upgraded to 2.1.1.  (The 2.1.2 
version isn't in the FreeBSD ports system yet.)  The options for 
securing mailing list to newsgroup ports don't seem a lot different.

So, I was wondering if anyone has tried to tighten the security on 
mailing lists ported to newsgroups, what you did, and how it worked 
out.

Thanks,
Mike