Forum Discussion
famadorian
Jun 12, 2019Brass Contributor
Advance Message Trace, Device Email Client
I have an Office 365 user who has somehow sent 500+ emails with a onedrive link to some shady stuff. Of course, he hasn't done this, but something has. 1. something has sent 500+ emails with sha...
VasilMichev
Jun 17, 2019MVP
This might simply mean that OWA was used as the client. But it can also mean that something like a Flow interacted with the mailbox, etc. Hard to guess without being able to see what little info is in the message trace. Check the audit logs for the delete events, you might be able to see client info there.
famadorian
Jun 24, 2019Brass Contributor
VasilMichev An inbox rule was responsible for the deletions, so that wouldn't belong to a user client. Is there no way to confirm that OWA was used as the client?
- Rob EllisJun 24, 2019Bronze ContributorIf you have not already, follow the instructions here:
https://docs.microsoft.com/en-us/office365/securitycompliance/responding-to-a-compromised-email-account