View Single Post
Old 9 Apr 2018, 05:00 AM   #4
lane
Cornerstone of the Community
 
Join Date: Dec 2005
Location: Kars, NB, Canada
Posts: 702
Quote:
Originally Posted by ferrety View Post
If company A is sending from the domain chemist.com and company B (domain reviews.com) sends emails on their behalf. Will company B's domain, reviews.com appear in the header? Or just company A's?
This question has an unfortunate answer: "It depends". If company B uses servers under its own control (probably implied by your original remark on SPF authorization), company B's domain may well appear. Each computer in the chain of "Received:" statements in the header often tries to resolve the previous computer either by its self-identification and/or by reverse IP look up. So a user might well see company B's domain listed for one of the computers in the earliest part of the "Received:" chain.

However, not all email receivers do this, so the only real way to check it would be to examine a few of the messages sent that way, as BritTim suggested.
lane is offline   Reply With Quote