Re: [Asrg] Death, taxes and E-Postage.

[Seth Breidbart <sethb at panix.com>]

"Bill Mcinnis" <bill.mcinnis@messagelevel.com> wrote:

> Regardless of which route you go, you need to 
> establish some sort of message level info in a queryable form,
> something will need to keep track of who sent what, from where.
> Once you have set that up, why not just use that check to validate
> if a message came from where it said it did, by going back to the
> purported originating system and see if they have the origination
> record.

So why can't the spammer-controlled box lie about that (or, actually,
tell the truth)?  Some spamware uses the DNS or rDNS of the box it
runs on as its HELO string even now.

Seth

_______________________________________________
Asrg mailing list
Asrg@ietf.org
https://www1.ietf.org/mailman/listinfo/asrg