Introducing the Microsoft Defender for Office 365 Migration Guide

Thank you for the guide. We'll look into it next week for sure! 

We just tried enabling the advanced filtering for connector last week but had to roll back again. There were too many (legit) mails identified as spoofing (albeit correctly), ending up in the junk folders. I hope the guide can help us manage the spoofing actions so we can more gradually restrict/allow spoofed mails.