How to reject/detect emails claiming to be from my own domain?
pparsons at techeez.com
Thu Dec 29 18:12:33 UTC 2016
Any chance you have an example ?
From: MailScanner [mailto:mailscanner-bounces+pparsons=techeez.com at lists.mailscanner.info] On Behalf Of Mark Sapiro
Sent: December 29, 2016 10:10 AM
To: mailscanner at lists.mailscanner.info
Subject: Re: How to reject/detect emails claiming to be from my own domain?
On 12/29/2016 09:50 AM, Philip Parsons wrote:
> I am trying to get one that does the envelope-from header so at the
> MTA side of things. I am hoping someone has done this with sendmail
> as changing the MTA is not possible at the moment. The rule set from
> Thom van der Boon works great on the From header.
But, with sendmail and other compliant MTAs, the envelope sender will be put in a Return-Path: header, so if you alter the From: rules that work to look at Return-Path: instead, that should deal with envelope senders.
Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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