Tag Archives: O365

External sender warning message

9 Nov

https://www.securit360.com/blog/configure-warning-messages-office-365-emails-external-senders/

 

 

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Rename UPN – O365 Powershell

16 Jan

Login to Windows Azure Active Directory Module for Windows PowerShell with Office 365 administrator credentials and run the following command:

Set-MsolUserPrincipalName -UserPrincipalName mary.osgood@contoso.onmicrosoft.com -NewUserPrincipalName mary.smith@contoso.com