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Thanks Sanford - 1. DKIM is in hand, but my issue is that Mimecast says there is no way to whitelist our Marketo instance via DKIM, and IT does not see a way to do it within Mimecast. I am hoping there is another Marketo customer on these forums also using Mimecast who has successfully whitelisted ...
Sanford - Under email suspended cause I'm seeing "550 Rejected by header based Anti-Spoofing policy: myemail@mycompany.com - https://community.mimecast.com/docs/DOC-1369#550 [8jrT4lbqOSisnWzmg8akqQ.uk64]" I asked IT your questions and they said this is the rule that's being triggered for anti-spoof...
I have been unable to whitelist Marketo emails from our instance so that they can be received internally.The main causes for the Marketo emails being rejected include ‘Rejected by header based Anti-Spoofing policy’, or that the shared IP was on a blacklist. During implementation, I provided our comp...