The most important role of DNS for the majority of us is translating names into IP addresses so that network communications can occur.
For example, when you type your web browser, DNS is used to look up that name to determine the IP address of the server to connect to. So if that is how a simple web browser connection is made, what about when somebody sends email to an @address?
The questions which come very first in user’s mind are listed below with proper explanation. When your domain is registered, it’s assigned several DNS records, which enable it to be located on the Internet.
These include MX records, which direct the domain’s mail flow.
If you don’t have any idea about DNS, then Please visit This link Domain Basics…An MX Record is a perfect(Route-Map) address of any domain(usually Email Receiver).So, when a user want to send an email to another user then user’s mail server must know the receiver IP address. When DNS gets this request then DNS search for the request related Receiver records. In this blog post, we are going to clean email list on the basis of MX-Record.However, it can occasionally take longer for a change you've made to update across the Internet's DNS system.If you’re having trouble with mail flow or other issues after adding DNS records, see Troubleshoot issues after changing your domain name or DNS records.