Microsoft MCITP Test Prep - Windows Server 2008

Answer - D - MX record is used to resolve domain names specified in e-mail addresses to the IP address of the mail server associated with the domain.

Key Takeaway: MX record or a mail exchanger record (MX record) is a resource record in the DNS. This record specifies the mail server responsible for accepting email messages on behalf of a recipient's domain. It also specifies a preference value used to prioritize mail delivery if multiple mail servers are available. The MX records of a domain name specify how email should be routed with SMTP.