Claus Färber <list-ietf-rfc822(_at_)faerber(_dot_)muc(_dot_)de> writes:
Russ Allbery <rra(_at_)stanford(_dot_)edu> schrieb/wrote:
comes to Usenet feed patterns. Right now, it's common to attempt to
exclude certain types of binaries with patterns like @*mp3* and @*dvd*; so
long as all newsgroup names are ASCII words, this works fairly well,
Building filters that way will also catch some innocent discussion
group, e.g. a discussion group about CD-ROM and DVD drives.
If you filter alt.binaries.*mp3, you already avoid problems with IDNA
names.
And don't get all the MP3 groups.
I understand the problem, but unfortunately until we have a working binary
classification system that can bear the load, it's the only thing that
works without going to quite a bit more work.
--
Russ Allbery (rra(_at_)stanford(_dot_)edu)
<http://www.eyrie.org/~eagle/>