Re: IETF SMTP Working Group Proposal at smtpng.org

[Paul Vixie <vixie () vix com>]

mjc () cooper org uk (Martin Cooper) writes:

> OK - but unconditionally permitting null-return paths means that
> spammers can drive a coach and horses through the hole it leaves. :-(

that's how the proposal is optional.  spammers who lie about their
source/return addresses using nonexistent domain names are not the
subject of http://www.vix.com/~vixie/mailfrom.txt; rather, i'm
trying to address the issue of spammers who lie about _existing_
source/return domain names.
-- 
Paul Vixie