Hello. Yeap, broken dkim. Just paste the headers over at https://mha.azurewebsites.net/ and you'll get " Authentication-Results: Sender failed DKIM validation"
Classic "Do as I say, not as I do" case. JMRP is getting close to useless now. Regards, On Thu, Oct 1, 2026 at 12:34 AM Gioele Pannetto via mailop < [email protected]> wrote: > Hi all, > I was looking into our JMRP/FBL reports and I saw that many reports sent > by Microsoft have failing DKIMs caused by a bad signature. > The reports gets delivered anyway, given outlook.com's DMARC p=none and > passing SPF, but I'm suspecting a bug in our DKIM verifier, since I expect > Microsoft should know how to DKIM sign a message. > > Did anyone else noticed this? > > Thanks > > -- > Gioele Pannetto > On behalf of Qboxmail > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop > -- Paulo Azevedo
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