SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aplus-mx-record

Which DNS record tells other servers where to deliver email for your domain?

MX (mail exchange) records point to the mail servers.

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  1. MX ✔
  2. CNAME
  3. TXT

Why: An MX record names the mail exchange for a domain. A CNAME makes an alias and a TXT record holds text such as SPF policies. MX is the DNS record type normally used to publish where mail should be sent.

Huh, didn't know that: In RFC 1035 the MX type value is 15, and TXT is 16.

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What is a waste-collecting robot's favorite form of communication? Wall-E-mails.
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References

Answer: MX. An MX record names the mail exchange for a domain. A CNAME makes an alias and a TXT record holds text such as SPF policies. MX is the DNS record type normally used to publish where mail should be sent.

  1. RFC 1035 www.rfc-editor.org/rfc/rfc1035
    MX 15 mail exchange
    Checked 2026-10-10.

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