Mail mx

MX (Mail eXchange) records are a type of DNS (Domain Name System) record that specifies the mail server responsible for accepting email messages on behalf of a domain. In other words, MX records tell the world which mail server to send email to when someone sends an email to a specific domain.

Here's how it works:

1. When you send an email to [email protected], your email client looks up the MX record for the example.com domain.
2. The MX record points to the mail server responsible for accepting email for that domain, such as mail.example.com.
3. Your email client sends the email to the mail server specified in the MX record.
4. The mail server then delivers the email to the intended recipient's mailbox.

MX records are essential for email delivery, as they allow email servers to route email messages to the correct mail server for a domain. Here are some key aspects of MX records:

• Priority: Each MX record has a priority value, which determines the order in which mail servers are tried. The lower the priority value, the more preferred the mail server is.
• Mail server: The mail server specified in the MX record is responsible for accepting email for the domain.
• TTL: The TTL (Time To Live) value specifies how long the MX record is cached by DNS resolvers. A shorter TTL means the record is updated more frequently.

Here's an example of an MX record:

example.com. IN MX 10 mail.example.com.

In this example:

• example.com is the domain name.
• IN specifies that this is an MX record.
• MX specifies the type of record.
• 10 is the priority value.
• mail.example.com is the mail server specified in the record.

MX records are typically managed by the domain registrar or the domain owner, and they can be updated to change the mail server responsible for accepting email for a domain.