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What server software do you have? How many servers? Do you have Exchange running?
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What server software do you have? How many servers? Do you have Exchange running?

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I already buy the domain name for my company eg (abc.com.sg) and i would like to manage the DNS myself like create the A record and MX record for my server (mail.abc.com.sg).May i know what should i do ?
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I already buy the domain name for my company eg (abc.com.sg) and i would like to manage the DNS myself like create the A record and MX record for my server (mail.abc.com.sg).May i know what should i do ?

How to self-manage for my company domain name

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.