How to find login attempt with specific username in HTTPS traffic

Hi all,

I have published few websites to the Internet, one of them is used for outlook, and because F5 should know to decrypt traffic I have a question below.

I was asked to analyze HTTPS traffic which will contain login attempt with specific username, to specific server and if this sitution will occure f5 should log it.

Question is, if this is possible and if yes, how to do it.

Thank you