Hello, 

I have a free zoho email account and it was working fine with my registrar until recently that I stopped getting emails. 

My registrar is not very sophisticated and provides no support. 

I was able to log into their panel and you can only add DNS addresses, so I added the 3 mx records zoho suggests, but that is it. 

I then refreshed MX records in zoho panel and still not working. 

What am I doing wrong or do I now need a hosting service?

Thanks