OT: SORBS a PITA on spam backscatter ...

Hugo van der Kooij hvdkooij at vanderkooij.org
Wed Jun 13 21:31:12 IST 2007

On Wed, 13 Jun 2007, Hugo van der Kooij wrote:

> On Wed, 13 Jun 2007, Garry Glendown wrote:
>>  Sorry, this is most likely somewhat off topic, but maybe I could get
>>  some suggestions ...
>>  One of our customers was hit by a presumably larger amount of spam
>>  mails, addressed to mail addresses collected somehow, but with errors in
>>  the addresses (first part of the mail address duplicated, like
>>  "johnjohn at do.main" instead of "john at do.main"). They are operating a
>>  multi-level mail service, with MS on our side, delivering to an SMTP
>>  proxy, then over through a virus scanner, and finally to the actual mail
>>  server (M$ Exchange). Mails are accepted, even by the Exchange server,
>>  which in turn generates a non-delivery receipt for wrong addresses.
> Don't we just hate Exchange for this? Perhaps you should just let them have 
> all the spam untill Exchange behaves correctly. Or setup some trick to learn 
> wether or not a receiver address is in fact valid before you accept it.
> Such an LDAP link is part of the competition.

The closest thing I have seen online is a static method:


 	hvdkooij at vanderkooij.org	http://hugo.vanderkooij.org/
 	    This message is using 100% recycled electrons.

 	Some men see computers as they are and say "Windows"
 	I use computers with Linux and say "Why Windows?"
 		(Thanks JFK, for the insight.)

More information about the MailScanner mailing list