Web and technology
MX
Abbreviation for Mail Exchange
In short and in plain language
An MX record is an entry in the domain name system.
It says which server takes in the email for a domain.
Without a suitable record, mail sent to your own address cannot arrive.
Definition
An MX record is an entry in the Domain Name System that states which server accepts email for a domain. Without a suitable record, mail sent to your own address cannot be delivered.