Windows Live Custom Domain unable to confirm domain ownership

Hi, I set up custom domain and entered the required MX Entry into my cPanel for Mail Setup.

It has been some time but the yellow box still appears, saying:

"You need to prove ownership of this domain by creating a DNS record. Use the settings below.

You can Cancel service or Edit mail settings"

I have tried several MX Lookup websites and they are able to tell that my DNS has been updated.

Is there another way to prove domain ownership? What happens if ownership is not proven after some time? Will my email stop functioning?

Thank you in advance.

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