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Disable-PushNotificationProxy

Use the Disable-PushNotificationProxy cmdlet to disable the push notification proxy that's configured between an on-premises Microsoft Exchange organization and a Microsoft 365 organization. Exchange PowerShell reference

From the Exchange PowerShell reference 2 parameters Its page in the reference

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Parameters

2 in the Exchange PowerShell reference
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.