bounceback

noun5

1. •
   A rebound.
2. •
   An economic recovery.
3. •
   (Internet) An automated response to an email, indicating that it could not be delivered.

   • Don't be fooled into thinking that just because you don't get many bouncebacks and not many people are unsubscribing that you have a good list […] — 2012
4. •
   (slang) A patient who returns with the same complaint.
5. •
   A customized order form sent out with previously ordered goods, encouraging the customer to make a further order, perhaps motivated by a discount or free gift.

   • It is not unusual to get as high as 15 or 20 percent return in bounceback orders if customer satisfaction with the original order is high and the appeal for a follow-up order is strong. — 1991