Enter any domain name, or host ip address you would like to perform a 'MX Records retrieval' on. (i.e. email@example.com or gmail.com)
An MX record or Mail exchanger record is a type of resource record in the Domain Name System (DNS) specifying how Internet e-mail should be routed using the Simple Mail Transfer Protocol (SMTP). Each MX record contains a priority and a host name, so that the collection of MX records for a given domain name point to the servers that should receive e-mail for that domain, and their priority relative to each other.
The w3dt.net MX Retriever is a tool to help retrieve any MX records associated with a domain for testing purposes.
The host name contained in an MX record must have an address, i.e. an A or AAAA DNS record. CNAME aliases are prohibited in an MX record data, while CNAME is allowed for the MX record label, that is for the domain name leading to the MX record itself.
The w3dt MXXR Tool was written by David Nedved in 2008 for testing purposes.