You're the Author of the Hotmail-Article (the Forwarding) and I wanted to ask what may have gone wrong:
I've got the SMS-Code, entered it into the confirmation-form.
I changed to the forwarding-options, tested if it worked yet without success.
Back to the mobile-notification-options, chosen that I haven't got the SMS-confirmation-code, then chosen not to receive any notification, saved that, went back to forwarding-options, and checked again that it wont work (same answer: "please just use e-mail domains from Microsoft") .
Do you already have answer from people of other countrys, if it works for them?
And which E-Mail-Provider did you use for your forwarding?