https://techcommunity.microsoft.com/discussions/exchange_general/exchange-online-protection-falls-over-but-only-in-the-u-s-/698/replies/699
Exchange Online Protection Falls Over (but only in the U.S.) | Microsoft Community Hub
On June 30, 2016, a problem with Exchange Online Protection caused Office 365 tenants in the U.S. to experience delays sending and receiving emails to and...
exchange online protection
https://techcommunity.microsoft.com/discussions/exchange_general/exchange-online-protection/2520441
Exchange Online Protection | Microsoft Community Hub
Can someone explain the difference between 'Mail Flow Rules - Policy filtering' and 'Content filtering'? Could you also give an example please?
exchange online protectionmicrosoft communityhub
https://techcommunity.microsoft.com/discussions/exchange_general/exchange-online-protection---rant-on-office365-support/2135995
Exchange Online Protection - rant on Office365 Support | Microsoft Community Hub
So I had this case with another IT provider who sends messages with failing SPF and thus marked as spam. That IT provider resists updating their own DNS for...
exchange online protectionmicrosoft communityrantsupporthub
https://techcommunity.microsoft.com/discussions/exchange_general/exchange-online-protection-spf-record/1358371
Exchange Online Protection SPF record | Microsoft Community Hub
Hi, I have received a message sent via Exchange Online host IPv6 "2603:10a6:20b:c0::31". The message was marked as spam because of SPF fail. Subnet...
exchange online protectionspf recordmicrosoft communityhub