On Wed 02/Dec/2020 00:20:12 +0100 Douglas Foster wrote:
2) NOT ACCEPTABLE: Server Domain matches RFC 5322 From domain, but RFC 5321
Mail From is a different domain.
All this tells us is that the Mail From domain is a client on that system.
Being a client of a hosting service does not give the right to speak for the
hosting service.
What if I wanted to collect bounces at a different domain?
OTOH, an MSA can relay using a different HELO (or even a different IP),
according to the right (categorization) it wants to supply.
Best
Ale
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