On Fri, 01 Apr 2011 13:33:15 -0500
Vernon A. Fort <vf...@provident-solutions.com> articulated:
> On Fri, 2011-04-01 at 13:17 -0500, Noel Jones wrote:
> > On 4/1/2011 11:36 AM, Drizzt wrote:
> > > On 2011-04-01 11:22:04 (-0500), Vernon A.
> > > Fort<vf...@provident-solutions.com> wrote:
> > >> I'm trying to find a way to block/reject inbound messages
> > >> forging our internal email addresses. Meaning their inbound
> > >> messages using MY email address but there not originating from
> > >> my server.
> >
> > a quick example:
> >
> > # main.cf
> > smtpd_recipient_restrictions =
> > permit_mynetworks
> > # NOTE: remove the next line if not using SASL
> > permit_sasl_authenticated
> > reject_unauth_destination
> > check_sender_access hash:/etc/postfix/sender_access
> > ... other local checks ...
> >
> > -- Noel Jones
>
> This check the envelope sender, correct? The Return-path: is an
> external address. Its the From: in the message header i am battling
> with. I assume its a header_check but it would have to be some for of
> IF <my address> AND NOT received from mynetworks, REJECT.
>
> its spam and the FROM and TO are identical, i.e. from me and to me.
I have used "postfwd" to alleviate that problem.
http://postfwd.org/
--
Jerry ✌
postfix-u...@seibercom.net
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