Zoho mail says The MX Records of your domain fairfield.lk are not pointed to Zoho .... but my host shows the correct mx record

Zoho mail says The MX Records of your domain fairfield.lk are not pointed to Zoho .... but my host shows the correct mx record

Zoho mail says - The MX Records of your domain fairfield.lk are not pointed to Zoho and you may not receive emails in Zoho - however my host shows the correct mx record entry as : mx.zoho.com.

I am able to send emails but not receive them.

Using https://mxtoolbox.com to check shows the following message. Please help.

Sorry, we couldn't find any name servers for 'fairfield.lk'