Forum Discussion
Incorrect processing of messages with multiple DKIM signatures?
Hello, I've been noticing strange behavior on our Exchange online where legitimately spoofed incoming messages that are double signed (Usually one unaligned DKIM signature for the sending infr...
Marco_Meieris right, your record for dmarc is incorrect, just doing a search for your dmarc records on dmarcian.com shows the below;
perhaps correct it?
Once, I analysed the same issue with multiple DKIM Signatures. First, I thought it is an bug in EOP but second, I figured out an invalid dmarc record from one of the dkim signatures. Corrected, solved 🙂