Creating an Email Service for Email to Case Premium (Professional Edition)
You are setting up Email to Case Premium in a Professional Edition Org, and require assistance with configuring the packaged Email Service.
For those working in a Salesforce Org with Enterprise Edition or higher, Email to Case Premium provides an automated mechanism for generating the Email Service as part of the setup process.
However, users on Professional Edition do not have access to this feature. Setup on Professional Edition requires the manual generation of the Email Service and Routing Address through the Salesforce Setup menu. Please follow the steps below: