lets say an email bounces so the address gets blacklisted, but its a legit email address from a real customer. customer emails in and asks why they arent getting their emails, and customer support should have the tools to handle.

sendgrid: search email address, find the bounces, click the button that says allow and user gets emails.

ses: set up an sqs queue. Pipe all bounces into a db. manage said db. Make a service with ui to search for emails. include a ui to unblock address.