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h2dcomputers/Calendar Spam in Microsoft Outlook and Exchange 365

Last active November 6, 2025 18:41
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Calendar Spam in Microsoft Outlook and Exchange 365
Open PowerShell as Admin
Allow for the script to be ran
# Set-ExecutionPolicy RemoteSigned -Scope LocalMachine -Force
Install NuGet and PowerShellGet
# Install-PackageProvider -Name NuGet -Force
# Install-Module -Name PowerShellGet -Force -AllowClobber
Install Exchange powershell module as current user
# Install-Module -Name ExchangeOnlineManagement -Scope CurrentUser -Force -AllowClobber
Verify it is installed
# Get-InstalledModule ExchangeOnlineManagement
Connect to Exchange with Exchange Admin or GLobal Admin account
# Connect-ExchangeOnline -UserPrincipalName [email protected]
Check the current setting of AutomateProcessing for user
# Get-CalendarProcessing -Identity [email protected] | fl AutomateProcessing
Set user's AutomateProcessing setting to "none"
# Set-CalendarProcessing -Identity [email protected] -AutomateProcessing None
Revert the user's AutomateProcessing setting to default
# Set-CalendarProcessing -Identity [email protected] -AutomateProcessing AutoUpdate
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