S/MIME in Outlook for iOS / Android with Exchange on-premise?

Senior Member

Hello, I'm trying to figure out if the S/MIME-certificate-functionality in the Outlook app only applies to Office 365 or to Exchange on-premise as well (no hybrid). I don't see the option to enable S/MIME in the app for my Exchange account:

Exchange accountExchange account

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Here's a screenshot from the documentation with the security options:

Office 365 accountOffice 365 account

 

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