How can the Web Form creator stop being copied on completed form emails?

My department uses a shared mailbox to communicate with clients and I do not want my individual email address included as a CC on completed forms. 

On the web forms I’ve created, my email address is automatically added as a CC whenever a client completes a form. The shared mailbox is listed as a CC Participant on the web form, not my individual address. I have also turned off all notifications in my profile settings. 

What can I do to ensure only the shared mailbox receives a copy of the completed form?

Thank you,

Dominic