Hi Rony.
There is a confusion between the email used as the sender and the email/account used for SMTP. This is 2 different things.
The email visible as sender is defined into the setup of company or setup of your user.
For the SMTP, the credentials for authentication (login/pass, often an email/pass) is defined into the home - setup - email - choose SMTP method.
If you really need to have noreply as the visible sender email, just enter this on into the email of your user record so you can use it when sending email.
