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False 554 5.2.2 mailbox full error
I have a user that randomly has email rejected with this error: 554 5.2.2 mailbox full error. He is using about 30% of space. We have made sure that all deleted items are permanently deleted. What I ...
It's possible it's the recoverable items folder at the limit https://learn.microsoft.com/en-us/exchange/security-and-compliance/recoverable-items-folder/recoverable-items-folder
- We have already gone through this step. We even uninstalled Office 365 as a whole and reinstalled it and the problem still exists.
