Not receiving most emails to my domain

Not receiving most emails to my domain

Hi,
I can send and receive just fine with my @zoho.com address.  The problem is I cannot receive most emails to my custom domain name and the one user account I have setup for it for myself.  I can send just fine.

The only emails I can receive are from an outside address I control and also as my name on it.  However, when I first setup this domain a few months ago, I was able to receive one email from someone else I knew.

The other users do not get a delivery failure response.  Their messages to me are simply lost.

Is this a case of graylisting gone too far?  I do like the anti-spam features, but this is too much.

I read the advice in another topic about making sure the zoho mx records were the lowest priority at my DNS provider.  But I'm only using your two mx servers.  Should the priority be set for both at 30 instead of the current 10 for mx.zoho.com and 20 for mx2.zoho.com?

What should I do?