Email suffix mx abbreviation

You're referring to the MX record!

In DNS (Domain Name System), an MX record (Mail Exchanger record) is a type of resource record that specifies the mail server responsible for accepting email messages on behalf of a domain name. The MX record is used to direct email traffic to the correct mail server.

The MX record consists of two parts:

  1. Priority: A numerical value that indicates the order in which mail servers should be tried. Lower values have higher priority.
  2. Mail Server: The hostname or IP address of the mail server responsible for accepting email messages.

The MX record is typically written in the format:

MX <priority> <mail server>

For example:

MX 10 mail.example.com

This MX record specifies that the mail server mail.example.com has a priority of 10 and is responsible for accepting email messages for the domain example.com.

When an email client or server sends an email to a domain, it looks up the MX record for that domain and uses the mail server specified in the record to deliver the email. If the mail server is unavailable or returns an error, the email client or server will try the next mail server with a lower priority, as specified in the MX record.

The MX record is a crucial component of email delivery and is used by email providers, ISPs, and other organizations to ensure that email messages are delivered correctly and efficiently.