ingress SMTP
Matthew Moyle-Croft
mmc at internode.com.au
Sun Sep 14 03:58:00 UTC 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 isp.net.au)
If you're forcing people to use your mail servers as a smart host then
you wouldn't be very popular ...
MMC
More information about the NANOG
mailing list