Anyone know of a product or package or a good how to ... for creating a backup MX record product that basically gets the mail if the mailserver is not available and then checks for the mailserver to become available and then delivers the mail to the mailserver? I am trying to come up with a way to do something similar to http://www.dnsexit.com/Direct.sv?cmd=backupMx for my clients. Please let me know what you guys think!
