> On Dec 9, 2016, at 3:36 PM, Luke Martinez via mailop <mailop@mailop.org> > wrote: > > I've got some DKIM failures I'm having trouble figuring out. Below are two > identical messages sent to two different outlook.com recipients from the same > infrastructure. One is failing DKIM, the other isn't. > > This issue is semi-repeatable, with some addresses failing DKIM and others > passing seemingly at random. > > I was wondering if anyone could help me identify the cause of the DKIM > failure, or let me know if this is just a thing that happens on occasion. > I've attached the full messages and pasted the two headers.
dkimpass.txt indents some lines (e.g. DECK THE HALLS) with three tabs, while dkimfail.txt indents those same lines with six spaces. For mail that otherwise looks like it's coming from the same template that's very suspicious. Cheers, Steve _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop