If delegate email is mis-spelled and bounces the original signer is not notified?

We are creating agreements via API using Hybrid Routing.

If a recipient attempts to delegate and accidentally mistypes an email they do not recieve any notification of their error ? (the email bounce.)

An undeliverable notification does go to the email for the creator of the agreement - but not to the recipient.

Is there anything we can add to the payload to ensure the original signer/recipient is notified as soon as the email bounces without having to go back to the agreement creator? (esp as in our case the agreement was created via API)