Changed MX but still not receiving emails,why?

Changed MX but still not receiving emails,why?

I changed my MX records 3 hours ago. MX toolbox indicates the TTL is 1 hour and that it is pointed to zoho. We can't get this to work. We tried yesterday after waiting a whole day after changing the MX records on our host control panel. Our site, kokinocashmere.com was verified in zoho.

We went back and changed everything  to original state and emails came in. It is not working with zoho.
Very frustrating. Can we get help,please? What are we doing wrong?