RE: can the telnet command be automated?

I found a technique to validate an email address using telnet port 25 as
follows:

telnet smtpserver:25

then type the following

helo <yourdomain.com>
mail from: <info@xxxxxxxxxxxxxx>
rcpt to: <jimbsa2aa4@smtpserver>


If there is a better way of doing this, im up for it.

Here are two sites for reference
http://verify-email-address.org
http://www.barattalo.it/demo/dosmtpvalidation.php#


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Tuesday, November 09, 2010 12:59 PM
To: Midrange Systems Technical Discussion
Subject: Re: can the telnet command be automated?

I thought you were trying to automate a telnet connection? If so, why
are you connecting to an SMTP (e-mail) port?!


On 11/9/2010 10:22 AM, tim.dclinc@xxxxxxxxx wrote:

Im trying to work with PASE TELNET using the technique discussed, but it
locks up and doesn't complete the script.

Here is the qsh command I am using
QSH CMD('(/curl -v telnet://74.125.45.27:25</tmp/pase/stdin.txt )')

Here is the script file.
HELO<barattalo.it>
MAIL FROM:<info@xxxxxxxxxxxx>
RCPT TO:<sample@xxxxxxxxxx>

Here is the output:
* About to connect() to 74.125.45.27 port 25
* Trying 74.125.45.27... connected
* Connected to 74.125.45.27 (74.125.45.27) port 25
220 mx.google.com ESMTP b20si14035801ana.185
250 mx.google.com at your service

It just sits on this display. I cant get out of the session without using
System Request opt 2

Any suggestions?