Importing X.509 certificates stocked in files

Hello,

I have received 2 files .CER.

One is the certificate of the person and the second the certificate of the organisation.

I have imported the 2 certficate in my PAB, I have cross-certified.

I have add the person in my address book.

When I’m trying to send the message with encryption, Notes is saying that there is no X.509 certificate available to encrypted the memo.

My id is containing our X.509 certificate.

How to import the x.509 in the PAB person document ? what’s wrong with my config ?