Import a PKCS 12 certificate for Entourage

If you have a PKCS 12 file (.pfx or .p12 extension) containing a certificate and if you want to use it with Entourage, you will have to import the certificate first.

To do so, use the Keychain Access:

• Go to Applications / Utilities / Keychain Access
• Select File / Import 
• Select the keychain in which you want to import your certificate. If it is a client certificate, select Session or Login. For an authority certificate (root or intermediate), you would select X509Anchors

Your certificate has been imported. If the PKCS 12 file contains a certification chain, it has been imported as well.

You can now finalize your software configuration, Signature / encryption with Entourage