Final answer:
The MX record should be used to configure the transmission of email to your intended mail server.
Step-by-step explanation:
The DNS record that you should use to configure the transmission of email to your intended mail server is the MX record.
The MX record is used to specify the mail server responsible for accepting email messages on behalf of a domain. It points to the domain name of the mail server that should receive the emails.
For example, if your domain is example.com and your mail server is mail.example.com, you would set the MX record for example.com to point to mail.example.com.