On Tue, 26 Nov 2019 at 14:13, Paul Smith via mailop <mailop@mailop.org> wrote: > On 26/11/2019 12:41, Stefano Bagnara via mailop wrote: > > I don't know if ItaliaOnLine postmaster follow this list and if they > > consider this new behaviour a feature or a bug, but I wanted to share > > this finding/news with you. > > > > What do you think about this? Do you know other providers making this > > "deliberate guess"? > > It's bad for an ISP to do that. 'p=none' is often used for the case of > "we've just started using DMARC and don't know if we've got it set up > correctly yet", so treating it as p=quarantine is going to lead to lots > of false positives. > > On the other hand, if this is JUST for mail from msn.com, they may have > decided that that domain is established enough that hopefully the admins > know what they're doing, so may have an exception to treat mail FROM > THAT DOMAIN as p=quarantine (similarly with gmail.com, which also has > p=none)
My test confirmed it happens also with one of my own domains where I activated p=none as a test. Stefano _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
