I may not understand your question correctly but here is what I think the
answer is: In order to list/remove/add the certificates for a particular
contact you can open the contact and click on the Certificates tab. From
there you can see all of the certificates associated with that contact and
import or remove certificates. There is not a central place in Outlook to
view the certificates of all contacts, they can only be viewed individually.
I hope this information is helpful.
Robert Findlay
Partner Technical Lead -- Outlook/Office Setup
Microsoft Technical Support for Platforms and Business Applications
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