From Lunarpages Web Hosting Wiki
Here are some commonly asked questions about MX Records here at Lunarpages.
What is an MX Record?
An MX Record is an entry in the domain nameservers that specify which servers will handle the mail to a specific domain name.
MX entries muct be in FQDN (Fully Qualified Domain Name) format, such as domain.com or mailserver.domain.com. IP addresses cannot be used directly as an MX entry.
I want to set up my own mail server. How do I change my MX Records?
Yes you can. E-mail email@example.com or put in a Help Desk ticket and we can do this for you. We can and the entry to be added to your MX record. Please note that although we can change the entries, we cannot assist you with setting up your mail server.
While you can change 1 MX record in Cpanel and LPCP, changing the MX record there will not change how email from forms or scripts is handled nor will it let you make multiple MX record changes or additional DNS changes such as Cnames, A records, etc. Please email Support with requests to change DNS records. They can manually create multiple MX records, Cnames, etc. for you and point all email including from forms and scripts away to another server. They can also create an indirect MX entry for an IP address if needed.
Another benefit of opening a ticket with support to change your records is that Lunarpages will have a hard copy of the changes and it will be noted on your account which may assist us when future issues occur or your account is moved between servers.
Email firstname.lastname@example.org with your username, last four digits of your credit card number, and the entry to be added to or changed in your DNS zone file.
Please keep in mind that custom DNS entries in our nameservers only work if your domain is using our nameservers. If your domain is pointed to other nameservers, you should make the changes in them instead.