To send a test email via Telnet, please do the following:

 

  1. Open Command Prompt

  2. Type:
    telnet IP_address_of_mail_server 25
    The server should respond with 220 (then identifies itself - possibly with several lines of 220 + text)

  3. Type:
    HELO
    The server should respond with 250 (followed by human readable message)

  4. Type in who you want the test e-mail to come from:
    mail from: you@yourdomain.com
    The server should respond with 250 is syntactically correct (or similar)

  5. Type in who you want the test e-mail to go to:
    rcpt to: them@theirdomain.com
    The server should respond with 250 is syntactically correct (or similar)

  6. Type:
    data
    The server should tell you to send data then CRLF period CRLF at end

  7. Type your test message and then CRLF period CRLF (i.e. type a period on a line by itself then hit ENTER).
    The server should respond with a 250 message submitted to queue


The e-mail will then be submitted to the mail servers queue for delivery and the recipient specified in step 5 should receive it.