Mail Exchange Recordcomputing dictionary

<messaging> (MX Record) A DNS resource record type that says which SMTP server handles electronic mail for a particular domain. E.g. the MX record

foo.co.uk. 1054 IN MX 10 mail.foo.co.uk.

means that mail for an address like "denis@foo.co.uk" should be sent to "mail.foo.co.uk".

There can be several servers for a domain. The "10" is a priority - the server with the lowest number will be tried first.

Acronym: MX Record

(01 Jan 2007)

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