Office 365 - Message Encryption - and sign using S/MIME



A yes or no question.

We got this Encrypt button in Oulook now. So a enduser can click Encrypt (When OME is configured of cause).

But cís it possible for the end user to sign the mail using S/MIME too?

So its encrypted using OME end signed using S/MIME?

1 Reply

Hey @Michael Jensen,




Assuming you setup OME on your tenant correctly, OME will encrypt the actual message itself, and follow the path discussed here - Think of this as the more advanced of the two encryption.


The S/MIME signing is just an outlook feature, so even when OME is added it does not go away.