The need to know what is using installed SSL/TLS certificates is required for maintaining/removal of old certificates in Symantec Messaging Gateway (SMG).
There are many uses for certificates in Messaging Gateway
Information for installing certificates is located in the Administration Guide.
About certificates located on techdocs.broadcom.com is the hub for all installation instructions for certificates for SMG.
REMINDER: Broadcom does not support the conversion of certificates. Certificates must be in PEM format.