Which case submission process leverages Apex email services?

The case submission process that leverages Apex email services is On-demand Email-to-Case. This option is designed specifically for organizations that want to manage incoming email traffic more flexibly by allowing the use of Apex code to control how emails are processed and converted into cases.

Using On-demand Email-to-Case, businesses can customize the email handling process extensively. This includes defining how specific emails are processed, enabling specific business logic, or performing more sophisticated actions during the case creation phase. The use of Apex email services allows for enhanced automation and customization beyond what is possible with standard configurations.

In contrast, Web-to-Case is primarily focused on capturing data directly from a web form, while Email-to-Case serves to automatically convert incoming emails into cases without involving Apex. It uses a more straightforward setup without the customization and programming flexibility that On-demand Email-to-Case provides. Case submission through chat typically relies on different technology and processes altogether, focusing on real-time interactions rather than email handling.