Release Update:

Disable Ref ID and Transition to New Email Threading Behavior

Question #1: We only use outbound email functionality (existing Cases) within Email-to-Case. Will this give us the option to disable automatic Case creation when an email is sent to our Email-to-Case address?

Question #2: What is/are the field API labels needed on the EmailMessage object we can use for troubleshooting the unique thread identifier?

Question #3: Will this address situations where the customer's reply is sent through their own third-party email encryption system? This normally generates an email with their response not including the Ref ID.