How to send an email message using telnet

Sending an email message using telnet

This was blatantly borrowed from www.redantigua.com.

How to send a mail using telnet:
Telnet to port 25 on the server to communicate interactively with the SMTP server
(not sendmail-specific, but works with any SMTP server):

    220 host.domain.com ESMTP Sendmail 8.12.1/8.12.1; Fri, 27 Oct 2001 08:56:37 -0800 (BST) 
    helo domain.com 
    250 host.domain.com Hello root@localhost, pleased to meet you 
    mail from: user1@domain.com 
    250 user1@domain.com... Sender ok 
    rcpt to: user2@another.domain.com 
    250 user2@another.domain.com... Recipient ok 
    data 
    354 Enter mail, end with "." on a line by itself 
    Reply-To: user3@domain.com 
    Subject: Test Message 

    Hello 
    . 
    250 IAA13263 Message accepted for delivery

Some notes:

On the rcpt To: line, you probably want to use a recipient name that you know is valid on the host you're connected to.
Be sure you have a blank line between the header lines (Reply-to, Subject, etc.) and the message body or the body won't show up in the message.

10/17/2002