Unfortunately, Microsoft support is not very helpful. Maybe someone else has an idea.
We receive a lot of DMARC reports from outlook.com, saying that DMARC failed. In most because failed DKIM. As far as I can see, it mainly affects forwarded mails. These are mails that we send to our hosting customers, who forward them to Outlook. Our servers use SRS for forwarding. Unfortunately, I can't find the same problem with other providers either (for example Gmail). Our SPF, DKIM and DMARC settings should therefore be correct. Does anyone know the problem? And perhaps has a tip on what else I can look at. cheerful regards Moritz Friedrich
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