EXO Where could i configure S/MIME

[upfaffer]

Hello,

where i configure S/MIME ?
Is this only a setting on the backend EXO or is there some coresponding settings in the outlook client.?

Thx

[#2]

Have you checked the documentation? https://docs.microsoft.com/en-us/exchange/security-and-compliance/smime-exo/smime-exo
Generally speaking, you'd want both the backend and client-side steps.