Re: Blacklisting the originating MTA

In article <[email protected]>,
 Jeff LaCoursiere <[email protected]> wrote:

> On Mon, 27 Apr 2009, Doug Hardie wrote:
> 
> > In article <[email protected]>,
> > Keith Roberts <[email protected]> wrote:
> >
> >> Try viewing the full headers of the specific emails you want
> >> to block.
> >>
> >> You should be able to see the path the email has taken to
> >> reach you, from the original sender.
> >>
> >> You may then be able to block the emails using the
> >> domain name(s) in the headers.
> >
> > The TMDA documentation for filters seems to be saying that from-file
> > only checks the from email address and does not check the real domains
> > of the MTAs involved.
> >
> 
> Use the "header" filter instead (this is in my .tmda/filters/incoming 
> file):
> 
> headers '^X-BeenThere: [email protected]' ok
> 
> If you change the 'ok' to 'drop' it would blacklist all emails from this 
> list :)
> 
> The basic idea is if you can find something consistent in the headers, you 
> can do whatever you like with it.

That works, but it requires the user to be able to understand and build 
filter rules.  Thats not something I can give out to most users.  They 
simply would not understand how to make that work.  They can add to a 
list (like blacklist) but they are never going to learn how to build 
filter rules.


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