ingress SMTP

Matthew Moyle-Croft mmc at
Sat Sep 13 22:58:00 CDT 2008

*Hobbit* wrote:
>    > How do you alert mail server operators who are smarthosting their
>    > e-mail through you that their outbound messages contain spam?
> You don't let them falsify their envelope or headers to contain
> fields utterly unrelated to your own infrastructure, for starters.
> They try it, their mail bounces.  It's a very rare piece of
> spam that actually comes from who it says it comes from anymore.
Are you suggesting that only ISP domains should be allowed through?  
(eg.  username at
If you're forcing people to use your mail servers as a smart host then 
you wouldn't be very popular ...


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