Hmmm...

Brooks Davis brooks at one-eyed-alien.net
Thu May 27 10:52:28 PDT 2004


On Thu, May 27, 2004 at 10:32:27AM -0700, Stephen Paskaluk wrote:
> On Thu, 27 May 2004 18:58:40 +0200, Erik P. Skaalerud wrote
> > Matthew Dillon wrote:
> > >     I hate spam.  Sigh.  I disallow the more common Content-Type:
> encodings
> > >     used by spammers, like multipart/alternative, but I've been allowing
> > >     multipart/mixed because a number of DFly posters use it to
> attach patches
> > >     and such.
> > > 
> > > 					-Matt
> > > 					Matthew Dillon 
> > > 					<dillon at xxxxxxxxxxxxx>
> > 
> > Matt, have you considered using a anti-spam solution that has 
> > a better chance of catching these? for example,
> >  www.mailscanner.info content-scans for sendmail, and it 
> > supports spamassassin, clamav etc.
> > 
> > Erik
> 
> I can't say if it's doable or not, but using TMDA to challenge posts
> from non-subscribers seems almost ideal for preventing this.
> 
> For anyone not familiar with TMDA, it's a mail filtering tool that will
> send a simple challenge back to the sender (ie. "Hi, I'm TMDA, please
> respond to this to ensure you're a real person who wished to post to the
> DragonFly kernel list"), and also provides whitelisting (so not everyone
> needs to be challenged).  It has more features, but that pretty much
> sums up how it would be useful to keep spam off of a mailing list. 
> http://tmda.net is their home page.

TDMA f'ing sucks for viruses as does anything that responds to messages
containing viruses.  It confuses two entirely different tests.  What it
actually tests is "is this a valid address?".  What is wants to test
is "is THIS MESSAGE from a real person?".  As a result, I respond to
all TDMA and similar challenges even if I didn't send the message so my
address won't end up on a list of spammers.

-- Brooks

-- 
Any statement of the form "X is the one, true Y" is FALSE.
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