Restore Mailbox to Point-in-Time - Overwrite Target

[sixarm]

Hi there,

We have a situation where a user had their Exchange Online mailbox filled with a load of emails from an acquired company mailbox incorrectly during migration. We need to restore the user's mailbox back to a point before the migration. A simple process I thought as we have the mailbox in Veeam for Office 365, however I can't see an option for this. Is this possible?

The user had been with our company a few months and had emails migrated in going back years, so suddenly his mailbox is a total mess.

If we run the restore wizard the only option we have is to restore changed or missing items.

https://helpcenter.veeam.com/docs/vbo36 ... tml?ver=60

Is there no way to restore the mailbox to it's exact state at that point in time, i.e. remove everything that has come in AFTER the backup was taken?

[Mildur]

Hi David

With Microsoft 365, we only do item level restores and not mailbox level restores. We cannot overwrite an entire mailbox.
So we only add items to the target mailbox. If you want to have the exact same state, you have to restore the data to an empty mailbox.

What you could do is to use a Exchange Online command to get rid of the unwanted emails. You can use it to search for specific parameters like the original recipient and then delete the content in powershell for the user.

https://docs.microsoft.com/en-us/powers ... xchange-ps

Code: Select all

Search-Mailbox -Identity "User" -SearchQuery 'Recipients:"recipient@domain.tld"' -DeleteContent

Thanks
Fabian