On 24-11-2000 at 13:46, A. Curtis Martin kindly wrote:
> Jamie Dainton graced us with these comments:

JD>> But if you can trace the origins of spam it will help you block
JD>> mails. There is a list of open relay servers floating about the
JD>> internet. If you set a filter which checks for the open relays you
JD>> can create an interesting spam filter.

> I've been doing some of that, but not only is it time consuming but it's
> an art-form. You get better as you do a LOT of tracing.

Plus, open relays sometimes get closed. You'd need to update
your list fairly frequently to keep tracks of changes, so as
not to block regular e-mail. (Not to mention that real
e-mail gets sent from open relays too.)


- K -

-- 

Horror film characters are forever watching horror movies, 
either in theatres or on television at home, and not a few 
horror plots turn on the horrifying consequences of looking 
at horror.
  - Carol Clover: Men, women and chainsaws

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