Grant Mailbox Access Permission to Microsoft365 Mailbox

To grant full access to an Microsoft 365 Mailbox you must first connect to the remote PowerShell, and provide MailboxPermission.

PowerShell connect to Microsoft 365 AD

How to install Microsoft 365 AD PowerShell modules, both AzureAD and Msol and how to connect to Microsoft365 PowerShell

Install-Module is not recognized as the name of a cmdlet, function, script file, or operable program

Install-Module cmdlet by default, is not recognized on Windows 2012 R2 server. When running Install-Module on PowerShell, you will receive an error saying Install-Module : The…
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