drill:tldr:488f6

The command "drill mx ${example-com}" is a DNS (Domain Name System) query command used to retrieve the Mail Exchanger (MX) records associated with the domain name "example.com".

In more detail:

• "drill" is a command-line tool used for querying DNS. It is typically used to perform DNS lookups and retrieve DNS information.
• "mx" is an option provided by the "drill" command to specify the type of DNS record to query. In this case, it specifies that we want to retrieve the MX records.
• "${example-com}" is a placeholder indicating that you need to replace it with the actual domain name you want to query. For example, if you want to query the MX records for "example.com", you would replace "${example-com}" with "example.com".

When you run the command, it sends a DNS query to the configured DNS server for the MX records associated with the specified domain name. The response will contain a list of MX records along with their respective priorities. MX records are used to determine the mail servers responsible for receiving emails addressed to a particular domain.