Re: Stopping Sporge tutorial using NewsProxy (where do we get

de Peter J Ross 01/31/2008 04:23

In news.software.readers on Thu, 31 Jan 2008 14:22:55 GMT, M.L.
<me@privacy.invalid> wrote:

[M.L. previously wrote:]
>>> True, but unfortunately the Content-Type: field is outside of
>>> overview.fmt, so using Subject: is as close as some users can get to
>>> trying to eliminate HTML posts.

[I previously wrote:]
>> NNTP-Posting-Host: and X-Complaints-To: are also not part of a
>> standard overview database, but they're used in the suggested
>> nfilter.dat. Don't they work?
>
> They don't work for me because my news provider doesn't let NewsProxy
> filter on anything outside of overview.fmt.

That's a pity. I don't know why some news admins don't implement the
XHDR extension: it would be much cheaper for them in terms of
bandwidth than receiving ARTICLE or HEAD commands, and they wouldn't
lose users to better providers.

Without XHDR (or HEAD implemented in the filtering software),
anti-sporge filters aren't likely to work very well, though you can
detect a few patterns, such as an absence of lower-case letters in the
right hand side of a Message-ID or email address, which are
characteristic of *some* sporge posts and very few non-sporge posts.

--
PJR :-)