On Fri 22/Nov/2019 10:33:16 +0100 Paul Smith via mailop wrote: > On 22/11/2019 08:46, Alessandro Vesely via mailop wrote: >> Plain forwarding, that is without changes except trace header fields, needs >> no >> From: munging. > > Only if the original message is also DKIM signed. I see quite a few people > using DMARC with only SPF. I guess that they haven't worked out how to use > DKIM > with their mail server yet, and, since 'normal' messages will pass DMARC with > just SPF, then they leave it at that.
They should have p=none. That is, enable DMARC reports out of curiosity and look at how many receivers get non-authenticated mail. Best Ale -- _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
