1What it is
When someone emails your connected business address, inbound-ack-email immediately sends a branded acknowledgment and alerts the person responsible. Inbound means the customer contacted your business first.
2Why it exists
An email can sit unseen while the sender wonders whether it reached the right place. A prompt acknowledgment confirms receipt and sets an expectation for the real response.
3What you'll see happen
You will see the acknowledgment in the email conversation and an internal notification that a person is waiting. The message uses the business identity and the required email footer.
4What you do
Reply for real when you can. The automatic email confirms receipt, but the actual answer still comes from you or your team.
Bottom line: The inbox acknowledges every new request while the real answer is being prepared.