Which specific DNS record shows which mail server is in charge of a domain's email?

The specific DNS record that shows which mail server is in charge of a domain's email is the MX record. MX stands for Mail Exchanger. The Domain Name System, or DNS, acts as the internet's phonebook, translating human-readable domain names, such as example.com, into numerical IP addresses that computers use to locate each other. When an email is sent to a recipient, the sender's mail server performs a DNS lookup for the recipient's domain. This lookup specifically queries for the MX records....