Help with Configuring Firewall Exception

Hello, I have searched the forums but cannot find an answer.

Background: I am configuring Orchestrator to send email alerts. The “firewall” team in my organization must configure an SMTP exception for the Orchestrator server.

My issue is that the firewall team is asking for the executable (.exe) names and path that will be sending email (I assume the firewall configuration applies not only to the machine, but the exe files as well). Can anyone confirm the name of the Orchestrator components that send mail by file name?