My Domain Name expired. It has been fixed. My MX records are pointing correctly. But email is not working

My Domain Name expired. It has been fixed. My MX records are pointing correctly. But email is not working

I believe i need to reverify since the domain went down.  I need a new CNAME number to do so.  Zoho shows me as verified, but emails to my email at the domain are being rejected.  How can I fix this      I have tried calling, and emailing but have gotten no response.  Help.  This is urgent.