How to Send Email Using Telnet

Sending emails with Telnet can be very easy to do if you know how to do it. Please continue reading for some instructions for sending mail with Telnet (see also How to Check eMail with Telnet).

1. Open the cmd prompt. (Start -> Run or press win key + R, then type cmd and presss OK )
2. Type telnet server.com 25 (where "server.com" is the name of the smtp (outgoing) server of your email provider, such as smtp-server.austin.rr.com). This can be found by checking your account info in the program you normally use for email.
3. Type HELO server.com. (Or "HELO server.com")
4. Type MAIL FROM:you@server.com.
5. You may get a message saying "250 ok"
6. Type RCPT TO:Friend1@anotherserver.com, friend_two@someotherserver.org, friend.3three@Someserver.com, etc.
7. again, You may get a message saying "250 ok"
8. To write the message, type DATA and press Enter.  

• On the first line type SUBJECT:yoursubject and press Enter twice.
• Continue typing your message.
• Put a single period (.) on a line by itself and press Enter to send your message. The server should say 'Message accepted for delivery'. (Or it says 250 OK id=`a long id` or it says '250 OK: queued as B42F731C4D5')

9. Type QUIT to exit Telnet.