I just found this on another one of my groups, posted by someone else:
Most of the newsgroups I read are becoming inundated with spam. I saw
a post
claiming a solution and followed its link,
http://improve-usenet.org/.
This site
says that Google Groups is the conduit for a lot of spam hitting
usenet. I have
no connection with this site.
Iıd seen anti-Google Groups stuff before and ignored it. I use a
dedicated
newsgroups reader (MT-Newswatcher on Mac) but was never enough of a
purist to
care if others posted via Google or not. But the spam was getting to
me. So I
followed its instructions and added a filter to Newswatcher: Kill if
Message-ID
contains ³googlegroups.com².
Presto. The spam is gone. Some authentic, quality posts may be gone
too; I donıt
know, thus I post this. Iım sorry if I miss the value that you add to
this
group, but I need to keep this filter.
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Your two-cents??
Otis