I've got a client who is using WIX to design / host their website however wants to use the cPanel email. The domain is registered through NetworkSolutions and the nameservers point to our cPanel server. From there in the DNS Entries the A Record for the domain points to the WIX IP Address so web access works fine. The A name for mail.theirdomain.com has been set to point to the IP of the cPanel server. The MX Record with a priority of 0 is set to point to theirdomain.com. They can successful login and connect to the mailserver through mail.theirdomain.com and send emails. However when an email is sent to their domain it just gets lost. We never get a bounced back or timed out message and it's never delivered. What step is missing so that the email can receive?