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How to find the SMTP Mail Server for an Email Address

From here:
  1. Open a DOS Command Prompt
  2. Type "nslookup".
  3. Your computer's DNS Server name and IP address will be displayed.
  4. Type "set type=mx" - This will cause NSLOOKUP to only return what are known as MX (Mail eXchange) records from the DNS servers.
  5. For an example, type "" or use your own domain name.
  6. Results returned should look similar to this:



Non-authoritative answer: MX preference = 5, mail exchanger = MX preference = 5, mail exchanger = MX preference = 5, mail exchanger = MX preference = 5, mail exchanger =


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