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312-50V11 · Question #639

MX record priority increases as the number increases. (True/False.)

The correct answer is B. False. This statement is False. In DNS MX (Mail Exchanger) records, priority works inversely to the number: a LOWER preference number means HIGHER priority. For example, an MX record with preference 10 will be tried before one with preference 20. Mail servers attempt delivery to the…

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Question

MX record priority increases as the number increases. (True/False.)

Options

  • ATrue
  • BFalse

How the community answered

(38 responses)
  • A
    11% (4)
  • B
    89% (34)

Explanation

This statement is False. In DNS MX (Mail Exchanger) records, priority works inversely to the number: a LOWER preference number means HIGHER priority. For example, an MX record with preference 10 will be tried before one with preference 20. Mail servers attempt delivery to the lowest-numbered MX host first, then fall back to higher-numbered hosts if the preferred one is unavailable. So as the number increases, the priority actually decreases, not increases.

Topics

#DNS#MX record#mail priority#record types

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