Thanks to everyone for your feedback and votes on this item. We’re working through a couple of options and hope to have more information shortly. It’s a very difficult problem to solve since group membership is consumed across many different aspects of Microsoft 365. Thanks for your patience and keep the feedback coming!
An error occurred while saving the commentSteve commented
Yes this is something I require for a new app I wish to roll out...seamlessly.
43 votes2 comments · Office 365 Security & Compliance » Spam & Phishing · Flag idea as inappropriate… · Admin →
Refer to “Domains on the Outlook Safe Senders list aren’t recognized by Exchange Online or Exchange Online Protection” at https://support.microsoft.com/en-us/kb/3019657. All other Outlook safe sender and blocked sender lists’ iterations of safe senders, blocked senders and blocked domains are supported. For Safe Domains, the article lists solutions both for EOP Standalone and as part of Exchange Online.