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    32 comments  ·  Microsoft 365 Groups  ·  Flag idea as inappropriate…  ·  Admin →

    Disabling the welcome mail is possible with an extra parameter in the Set-UnifiedGroup cmdlet in Exchange PowerShell: -UnifiedGroupWelcomeMessageEnabled:$false. See

    Use this as a part of a custom group creation flow if you would like to restrict and/or customize the welcome mail for many groups across your tenant.

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    Anonymous commented  · 

    To do this as a mass update...

    Run this to pull a .csv of all O365 Groups...

    Get-UnifiedGroup -resultsize unlimited | select DisplayName,Name,Identity,Id | export-csv C:\Office365Groups\O365GroupsReport.csv -NoTypeInformation

    Then use the following cmd to import the data...

    Import-csv C:\Office365Groups\O365GroupsReport.csv


    get-content C:\Office365Groups\O365GroupsReport.csv

    Once the import is complete, use the following command to disable welcome message...

    Set-UnifiedGroup -UnifiedGroupWelcomeMessageEnabled:$False

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