I'm experiencing an odd issue when trying to access the "Explorer" in Defender to view emails in Exchange Online on our M365 tenant. When I run a message trace and try to view a specific email, I get redirected to the "Real Time Detections" page instead of seeing the email in Explorer. Even when I go directly to Explorer from the left-side menu, it just shows a page about a Defender for 365 trial and licensing. Is Microsoft now requiring a paid license to view emails in your own Exchange? I'm using our global admin account and have granted all security administrator permissions, but something seems off. What am I missing?
3 Answers
It sounds like this might be linked to those recent licensing changes. I signed up for the Defender Trial, and it fixed my ability to view emails in Explorer. It might be worth exploring that option!
You're not alone! I've had similar trouble. It's frustrating that sometimes these features just don't work. Have you also been having issues sending emails externally?
No issues sending emails today. However, I've read about an ongoing 365 Exchange problem (Issue ID EX1113110) that might be related to these access issues. Everything else seems normal on my end.
If you're using Proofpoint, be aware there was a DNSSEC issue that might be causing some problems too.
There’s currently a known service health issue that might be affecting this. Microsoft mentioned, 'Users may be unable to access their mailbox using any Exchange Online connection method,' which sounds like it could be what's impacting you right now.
Seriously? I found this out two weeks ago and have been testing it daily to monitor for changes.
So it seems like we might need that Defender P2 license to get access to view emails in Explorer? That’s a bummer.