On Wed, 6 Oct 2021, at 08:42, Mark Foster via mailop wrote:
> I think people using forwarding _know_ that SPF breaks their stuff.
That is a very optimistic viewpoint about the baseline technical knowledge of
users.
> I think people who publish a -all SPF record are _outright telling you_
> to refuse email that doesn't pass SPF.
Perhaps, but that doesn't mean they really know what they're doing or that I
have to listen to them.
> Rejecting on SPF -all is exactly what the person who published -all is
> telling you to do.
Sure, but they're not my customer. My customer is Joe Bloggs, who has an almuni
address from his alma mater that forwards to his mailbox I host. Joe has never
heard of SPF, other than as a rating for sun screen. He does know that he gets
very unhappy when I reject mail sent to him that he wants to receive though.
Neil.
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