I'm somewhat green when it comes to network administration, and I'm having some trouble configuring my DNS records so that I can receive e-mail to an e-mail server that I've recently set up. I'm able to send e-mail from the server, I'm just not able to receive mail. The e-mail server is an instance of the Standard Edition of MailEnable. The domain name for the server is of the form mydomain.com. I'm trying to set up the e-mail server to use the sub-domain mail.mydomain.com. Both of these domains point to the same IP address, and everything is running on the same server. When I type in the domain mail.mydomain.com, one of MailEnable's online tools produces an error message which reads:
FAIL, Unable to determine name servers for this domain. This may be because the domain is not registered. Please see www.dnsreport.com for more information on this domain.
This leads me to believe that this is a DNS issue. Could anybody point in the right direction as to how to troubleshoot this? I'm able to successfully ping mail.mydomain.com. Also, when I type nslookup mail.mydomain.com, I'm able to retrieve the mx record
mail.mydomain.com MX preference = 5, mail exchanger = mail.mydomain.com
I'm not really sure what to do, or how to proceed in troubleshooting the issue...
Any help will be much appreciated!