Overly strict e-mail validation strikes again @UPS . Trying to view a live map of a shipment out for delivery by providing my UPS My Choice e-mail and it only accepts e-mails ending with 2-3 letters (.com, .org, .us, etc.). The main My Choice login takes my e-mail just fine.

@UPS Of course, the simple workaround is to use my username instead of my e-mail address, but still. Reminder that domains can end with more than three characters!