We have Service Desks we support and there are times when a customer record is created with a incorrect email address. There are times we try and communicate with a customer at the bad email address. When we find out the email is no good, my team of admins are asked to update the customer record with the correct email address.
My question: How do you work through a bad email address on a customer record? Update to the correct email? Leave the bad one and create a good one? Something else?