Hi there,

I have my domain, which I had added to Windows Live Domains (domains.live.com). This is my business domain and I have created work emails here at Live Admin Center. It was working till yesterday. But now, it is suddenly showing a message. Due to this issue I am only able to send email, but cannot receive emails from others! I have updated all my MX and TXT records as suggested on the Admin center. :( I have attached the screenshot. 

Whenever I try to send email to any user account in Live, I get bounce back email saying '511, there is no such user (chkusr)'.

Please help at your earliest convenience as this is affecting my business and I don't want loose all those emails.

Thank you so much in advance.

Regards,

Chinmay