I have a customer who is moving their email to a third-party Exchange hosting service. I have set up a custom A record that points to the new host IP address, and custom MX records pointing to the new host SMTP servers. The problem is that the customer has a generic email address that simply forwards to another of their personal email addresses. All of their personal email addresses were forwarded to AOL email accounts. When I delete the personal accounts in the control panel, the generic forwarding account no longer works. Any ideas on what I might be missing in this setup?