we have a custom domain setup with zoho mail, and sending test emails all go through except all live, outlook, and hotmail addresses.
the emails DO NOT bounce back.  I am able to send mail from zoho to outlook, but not the other way around.  this is puzzling.  zoho tech support tried everything came up empty.  yesterday, everything worked correctly, today there is an issue.  please help asap!

thank you
Dear Sirs,

I'm migrating email hosting from Zoho to outlook.com.

But when i tried to sign up, i got this message : This domain name can't be used because it contains a protected word or inappropriate language.

The website is : htp://UnifiPromotion.com

This website is promoting Unifi fibre broadband service in Malaysia and I'm the admin for this website.

Kindly please help me to solve this problem.

Thank you.