What does the "NOTICE: Email Not Delivered" email I received mean?

  • MX Lookup Failed / Addressee Unknown / Error 550 / Server Response 550 / Server response 554 
    • What It Means: This is mail server code for "I can't find this email address here."
    • What to Do: Be sure to check that the email address (including the domain after the @ symbol) wasn't mistyped or that additional spaces haven't been added by mistake. For example, 'bobdemo@gmal.com' as opposed to 'bobdemo@gmail.com' or 'bobdemo@yahoo.con' as opposed to 'bobdemo@yahoo.com'. Update the email address and resend the transaction.