CmdID

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Delete-QuarantineMessage

Use the Delete-QuarantineMessage cmdlet to delete quarantine messages from your cloud-based organization Exchange PowerShell reference

From the Exchange PowerShell reference 7 parameters Its page in the reference

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Parameters

7 in the Exchange PowerShell reference
-IdentitiesThe Identities parameter identifies quarantined messages for bulk operations.
-IdentityThe Identity parameter specifies the quarantined message that you want to delete.
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-EntityTypeThe EntityType parameter filters the results by EntityType.
-HardDeleteThe HardDelete switch specifies the message is permanently deleted and isn't recoverable.
-RecipientAddressThe RecipientAddress parameter filters the results by the recipient's email address.
-WhatIf, -wiThis parameter is reserved for internal Microsoft use.