[CentOS] Sending Email Via Telnet

[Joseph Spenner]

From: John Reddy <linuxpencil at hotmail.com>
To: centos at centos.org 
Sent: Tuesday, October 16, 2012 7:30 AM
Subject: Re: [CentOS] Sending Email Via Telnet
 

>So I go to this page and get an example of how to do this:
>http://www.freebsdwiki.net/index.php/SMTP,_testing_via_Telnet
>and follow the example:
>
>[root at mydomain john]# telnet 127.0.0.1 25
>Trying 127.0.0.1...
>Connected to 127.0.0.1.
>Escape character is '^]'.
>HELO justtesting
>MAIL FROM: testing at gmail.com
>RCPT TO: testing at gmail.com
>DATA
>To: testing at gmail.com
>From: testing at gmail.com
>Subject: testing
>Date: Tu, Oct 2012 10:21:11 -0500
>Testing
>.
>QUIT

Something isn't quite right with your setup.  When you do the "HELO" command, the server should reply with something.  For example:

==
$ telnet smtp.comcast.net 25
Trying 76.96.40.155...
Connected to smtp.comcast.net.
Escape character is '^]'.
220 omta12.emeryville.ca.mail.comcast.net comcast ESMTP server ready
HELO comcast.net
250 omta12.emeryville.ca.mail.comcast.net hello [69.24.1.7], pleased to meet you
==

Does the mail server ever return anything back to you?