How do I set up the trigger to notify the assignee when a customer replies to an email?

Question

 How do I set up the trigger to notify the assignee when a customer replies to an email? 

Answer

Support has an active default trigger that sends a notification to the assignee when a new comment is added to the ticket.

For more information about the default triggers, see the article: About the Support default triggers.

For the original conversation, see How to set up trigger to notify assignee when comment is updated by the customer.