Question : DNS zone entry for web and email servers - 250 POINTS

Hi,

We used to host our own web, dns, and email server on the same machine internally.  Now we are having the website hosted by an external hosting company.  We changed the IP address on directNIC to the IP address of the hosting company.  We still want to host our own email server internally.

Can someone please tell me what type of DNS records are needed in the DNS zone of the external website hosting company if we still want to host our own email server internally?

What type of DNS records are needed in our own DNS zone on our internal server if we are only hosting an email server?

Thanks

Answer : DNS zone entry for web and email servers - 250 POINTS

You said that you were using your own DNS. If you want to move your web site to another ip, (the ip in the hosting), you only have to create a new A record pointing to the hosting ip.
The rest will be the same. So:

www.abc.com (A Record) pointing to the hosting
mail1.abc.com (A record) pointing to your primary mail server
mail2.abc.com (A record) pointing to your secundary mail server
MX record priority 10 ---> mail1.abc.com
MX record priority 100 --> mail2.abc.com

Another option is that your hosting manage your DNS so you only have to tell them where are your mail servers.