Hey Brandon, On 09.12.20 00:55, Brandon Long via mailop wrote: > > On Tue, Dec 8, 2020 at 1:31 AM Paul Smith via mailop <mailop@mailop.org > <mailto:mailop@mailop.org>> wrote: > If you're forwarding to your own company's mail server, then it should > be easy to have that forwarding work with SPF, and if you're forwarding > to someone like gmail, then, to be honest, it should be relatively > trivial for them to *USE* SPF to allow forwarding to them. I could tell > Google to allow a specific domain to forward to me (the domain of the > forwarder), and they use the SPF record for that domain to validate the > IP addresses that can then forward and override other SPF checks. > > > That feature was on my backlog at Gmail for a long time, but never high > enough priority > to get off it... now it would probably use ARC instead unless that > becomes a pipe dream, > at least theoretically with ARC we could just learn it and not worry > about the user interface > and confusing users. Interested question: Your systems could learn something like that too?
If a number of emails come in to the same recipient with "failing" SPF from the same host(s)/domains it is probably a forwarder to that recipient? Regards, Thomas Walter -- Thomas Walter Datenverarbeitungszentrale FH Münster - University of Applied Sciences - Corrensstr. 25, Raum B 112 48149 Münster Tel: +49 251 83 64 908 Fax: +49 251 83 64 910 www.fh-muenster.de/dvz/
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