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Enable-ExchangeCertificate

Use the Enable-ExchangeCertificate cmdlet to enable an existing certificate on the Exchange server for Exchange services such as Internet Information Services (IIS), SMTP, POP, IMAP and Unified Messaging (UM). Exchange PowerShell reference

From the Exchange PowerShell reference 10 parameters Its page in the reference

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Parameters

10 in the Exchange PowerShell reference
-ThumbprintThe Thumbprint parameter specifies the certificate that you want to configure.
-IdentityThe Identity parameter specifies the certificate that you want to configure.
-ServicesThe Services parameter specifies the Exchange services that the certificate is enabled for.
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.
-DoNotRequireSslThe DoNotRequireSsl switch prevents the command from enabling the "Require SSL" setting on the default web site when you enable the certificate for IIS.
-ForceThe Force switch hides warning or confirmation messages.
-NetworkServiceAllowedThe NetworkServiceAllowed switch gives the built-in Network Service account permission to read the certificate's private key without enabling the certificate for SMTP.
-ServerThe Server parameter specifies the Exchange server where you want to run this command.
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.