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Change the SMTP address of an O365 Group

July 30, 2018 | by iaur | posted as Adminstration, Microsoft 365


  • You would like to add a SMTP address for routing emails
  • You would like to change the primary SMTP address of an O365 group


  1. Connect to EXO using PowerShell
  2. Run below cmldets as desired (Change the Test O365 Group as the name of your group and as your desired SMTP)
Set-UnifiedGroup -Identity “Test O365Group” -EmailAddresses: @{add=””}
This is to add alias as an alternate routing address
Set-UnifiedGroup –Identity “Test O365Group” –PrimarySmtpAddress
This is to set the alias@domain as the primary routing address

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