When you add a domain as hosted in some account, you normally set a pair of Name Servers to point it to that particular company. On their end, 3 records are set up automatically the moment the domain name is added - one A record and two MX records. The first one is a numeric address, or IP address, that “tells” the domain address where its site is, while the other two are alphanumeric and they show the server that deals with the emails for that particular domain address. The website and the e-mail hosting are usually thought to be one thing, when they're in reality two different services. Having independent records for them will permit you to have them with different companies if you would like. For example, some new service provider can have outstanding uptime for your website, but you might not want to switch your e-mails from your current host and by using an A record to point the Internet domain to the former and MX records to have the emails with the second, you could get the best of both providers. These records are checked when you wish to open a site or send an email - either way, the company whose name servers are used for the domain name will be contacted to retrieve the A and MX records and if you've set records different from their own, the right web/mail server will then be contacted and you will see the needed site or your e-mail will be delivered.
Custom MX and A Records in Semi-dedicated Servers
The Hepsia hosting CP, included with our Linux semi-dedicated hosting service, will permit you to view the A and MX records for any of the domain addresses or subdomains in your account and if required, to update any of them or create new ones. Handling these records is quite easy since all domains/subdomains will be listed alphabetically, so updating a record is as easy as entering it in a box and saving the change. Creating a new one takes a few more clicks and in case you experience any troubles, you can check out our video tutorials on how to set up A and MX records. Our system is intuitive enough to be used by people with little or no previous experience, yet advanced enough to give you 100 % control over all records and to permit you to have different A records even for domain.com and www.domain.com. If you are moving your e-mails to a different provider and they ask you to create more than two different MX records, you can select the priority of each one.