Everyday is indeed a School Day and I had never come across this command util today!
The .NET service channel is introduced in Microsoft Exchange Server 2007 Service Pack 1 (SP1). This channel enables Exchange Server 2007 to store information that it will later forward to applications or devices that are not permanently connected to the Exchange server computer. The Enable-ServiceEmailChannel cmdlet enables the .NET service channel for a specific user. This cmdlet creates a receive folder in the user’s mailbox under the root folder named Service E-mail.
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