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office365 - How to correctly know a mailbox exists in exchange online or not using PowerShell - Stack Overflow
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Cannot find a recipient that has mailbox GUID when moving from Exchange Online to Exchange 2016 | Jaap Wesselius
![office365 - How to correctly know a mailbox exists in exchange online or not using PowerShell - Stack Overflow office365 - How to correctly know a mailbox exists in exchange online or not using PowerShell - Stack Overflow](https://i.stack.imgur.com/vBbQh.png)
office365 - How to correctly know a mailbox exists in exchange online or not using PowerShell - Stack Overflow
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