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MX record

From Simple English Wikipedia, the free encyclopedia

In the Domain Name System, an MX record is something that a domain uses to tell people and software the IP address of an email server. There can be more than one MX record for a domain. When there is more than one record, DNS uses a priority list that tells whatever is looking up the records to try the IP addresses in a certain order.[1] For example, example.com might have a set of MX records that say for mail.example.com to try first. If that try fails, another record will say to try This behavior makes email more reliable.

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  1. "FAQ: How MX Records Work". Google. Archived from the original on 19 March 2016. Retrieved 13 February 2016.