Re: "Security Certificate is Invalid..." w14d server
Hello rickvv and welcome,
The error message you are receiving is specifically referring to a PROXY Server ( this is the error message ) and Comcast does not use any Certificates for Comcast Customer email server access, when your hatzunginsurance.com domain zone file appears to be MX Record correct from what I see here:
I recommend you log into your Business Class Portal Administrator account, then under Manage Services, click Email, and click on View DNS Info link. The MX record information pertaining to hatzunginsurance.com domain is what you should have contained with your above zone file. Please check this and make sure that your zone file has the correct MX records contained within.