[Mimedefang] rejecting on helo,drive-by-relay,forged_sender,

[WBrown at e1b.org]

mimedefang-bounces at lists.roaringpenguin.com wrote on 01/16/2004 08:55:41 
AM:

> 
> > I remember someone posting mx code, to verify mail from a domain came 
from
> > the mx servers for the domain, but can't find it on the archive.
> 
> Mail from our domain doesn't come from the mx servers.  They handle
> inbound mail.  Outgoing mail comes from the outgoing mail servers.
> Goodbye from half the 'net!

I agree.  Our MX records will be pointing to our filter boxes. Outbound 
mail will go directly. 

Sender Permitted From (http://spf.pobox.com/)is designed to authenticate 
who is allowed to send mail for a domain.