A useful DNS support note includes the exact query and the exact answer. Screenshots can help, but text output is easier to search and compare.

Commands to use

dig @1.1.1.1 example.com MX

Checklist

  1. Include the domain or subdomain.
  2. Include record type.
  3. Include resolver if known.
  4. Include returned answer and TTL.
  5. Include time and timezone of the check.

How to use the result

The DNS answer should be compared with the intended source of truth: registrar delegation, DNS provider zone, hosting target, email provider instructions, certificate authority challenge, or internal network documentation. If they do not match, fix the source record before troubleshooting higher layers.