User alert with regular expression

Hi everybody

We have situation that need to alert certificate expiration. Yeah it's normally have no issue. But we have a concern from customer that they got alert about certificate expired from ca-bundle.crt which they didn't using.

Is there a way to create alert snmp trap that exclude ca-bundle.crt by regular expression? ie.

alert CERT_CA_MAIL_EXPIRE "Certificate (.*?) in file (anyfile except ca-bundle.crt) will expire on (.*?)"
 {
        snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.309";
        email toaddress="customermail@gmail.com"
        fromaddress="F5"
}

Or we have to delete ca-bundle.crt from F5. Is there a affect in a bad way for not have ca-bundle.crt on F5?

Thank you very much