Forum Discussion
Microsoft Defender for Email Whitelisting (Best Practice?)
Hello JimmyWork,
to be fair, the problem you describe is not yours to solve. If you have DMARC check enabled, you should kindly ask the client to include their 3rd party mail send infrastructure, it's their responsibility to hand over newsletters in a safe manner.
If this isn't possible, you could try adding a new mail flow rule, bypassing DMARC just for the domain of the newsletter and also whitelist it so it won't end up in the junk. But again, this should not be your problem, but the sender's.
Hope this helped.
MicrosoftHey JimmyWork! - cyb3rmik3 is right here, the sender of this newsletter is likely having issues with all the recipients of their messages, this is not your issue to solve, and unfortunately by setting up your infrastructure to support bad message hygiene just delays the issue and makes you responsible for managing the continuous update of any transport rules required to enable the successful delivery, and makes the risk the rule brings your responsibility too.
Hope that helps
Ben.
