Auto Response for Surveys

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I have a transaction survey that gets triggered to send from incident rule based on some condition that is set in an incident.  In the survey invitation Reply-To headers, I have "[email protected]sd.com" for From and "[email protected]" for Reply-To.
Both are dummy emails because I don't want customer to reply to it.  If a customer reply to the survey invitation however, I want it to respond with an auto email and not create any incident or append to existing incident.

How do I do this?