Which of the following types of DNS records deals with mail delivery for a specific domain?

Question

Options

• AA
• BTXT
• CMX
• DPTR

• A
  2% (1)
• B
  2% (1)
• C
  95% (40)

Explanation

MX (Mail Exchanger) records are specifically designed to handle mail delivery by pointing a domain to its mail servers and defining their priority order - making C the correct answer. An A record maps a domain name to an IPv4 address and has nothing to do with mail routing. A TXT record stores arbitrary text data (often used for SPF, DKIM, or domain verification), but it doesn't direct mail delivery itself. A PTR record is a reverse DNS lookup that maps an IP address back to a hostname, essentially the opposite of an A record.

Memory tip: Think "MX = Mail eXchanger" - the X literally stands for exchanger, which is what it does: exchanges (routes) your mail to the right server.

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