How to hide the name of the agent in the letter to the client that comes to him when the agent leaves Reply to customer in the request task?
!!!(not in letter's body, in author(look at yellow line)).
Go to project settings > customer notifications and edit the public comment edited. You can remove the user data as below. After editing send a test email to see how it looks.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.