Forum Discussion
URGENT!! M365 Admins deleting email and Teams chat content
I've never reached out to any MS forums before, but I desperately need help please ASAP. I am a M365 Admin with Global Admin access and am fairly new to PS. I am currently investigating two M365 Ad...
techietab "NT AUTHORITY/SELF" represents the mailbox owner. So there's nothing wrong with this permission being set. You can run a "Non-Owner Mailbox Access Report" which probably gives the clearest info on if anyone but an owner has accessed any mailboxes.
As for Teams, administrators generally do not have access to delete 1:1 chat messages, unless they actually sign in under your account. They could set up a retention policy to delete chat messages, which would generally delete all chat messages after a certain period. They can of course delete their own messages if the correct messaging policies are set. There's generally no way to recover those unless some for of legal hold or retention is enabled.
