china spam

[Scott Silva]

on 5-21-2008 6:22 AM Hugo van der Kooij spake the following:
> Amelein at dantumadeel.nl wrote:
> | We're steadily getting more spam from china relayed through legit
> hotmail and yahoo servers which is slipping through MailScanner(example
> header below).
> | Is there any way to combat these ? Just blacklisting anything with an
> ip from country X would work too although I don't know what to use to do
> this.
> 
> .....
> 
> | X-Originating-IP: [123.4.35.152]
> 
> This might be a usefull line. You might blacklist hotmail email where
> the source IP adres lies in certain countries.
> 
> To the best of my knowledge several web based email servers use this or
> a very similar header.
> 
> Combined with the chat I had about ASN detection we might write a custom
> function to tacke this.
> 
> Another header that might help you a bit:
> 
> | To: undisclosed-recipients:;
> 
> Personally I let postfix reject messages with this header. It may sound
> harsh but it kills a lot of nonsense messages.
> 
> Hugo.
> 
> PS: Your disclaimer is not legal.
> 
But at least it is environmentally friendly!  ;-P


-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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