Re: Spam and Censors

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Author: Jason S Kohles
Date:  
To: John Bolding
CC: exim-users
Subject: Re: Spam and Censors
On Thu, 22 May 1997, John Bolding wrote:

> I think all of us need a repository of spam sender addresses so that
> we can block as much of it as possible. Perhaps another list?
>
> One recent comment to this thread said their site was blocking 30 new
> spammers per week. That we postmasters have to resort to this
> is totally disgusting. At FirstBase, we get about 3-4 per day,
> and we block those as quickly as possible.
>

We are to the point where we are blocking thousands of spam messages a day,
and the majority of the blocking is done by only a few simple filters, so
for everyone's enjoyment, here are the most useful filters from our system
filter file...

   $h_to: contains        "internetusers@???" or
   $h_to: contains        "Friend@???" or
   $h_to: contains        "you@" or
   $h_to: contains        "@Yourdomain.com" or
   $h_from: contains      "noreply@" or
   $h_X-mailer: contains  "Avalanche" or
   $h_X-mailer: contains  "Floodgate" or
   $h_X-mailer: contains  "e-Merge for Windows" or
   $h_X-mailer: contains  "NetMailer" or
   $h_x-mailer: contains  "Extractor Pro" or
   $h_x-sender: contains  "Extractor Pro" or
   $h_X-mailer: contains  "bulk mailer" or
   $message_body contains "you by Dynamic Mail - the easier" or



The x-mailer and x-sender rules catch an amazingly huge number of spams along
with the "friend@???" rule, which seems to be a popular to line for
spammers for some reason...


    Jason Kohles -- System Administrator -- XMission Internet Access
      robobob@??? (at work) robobob@??? (at play)
   "Someone who thinks logically is a nice contrast to the real world."