SMTP MTA Performance Tool

JMeter

 

Telnet 

 date '+%a, %d %b %Y %H:%M:%S %z'

 Thu, 06 Jun 2013 12:21:18 -0700  

[user@host]# telnet smtp.domain.com 25
Trying 192.168.0.1...
Connected to smtp.domain.com (192.168.0.1).
Escape character is '^]'.
220 myrelay.domain.com ESMTP
HELO smtp.domain.com
250 myrelay.domain.com
MAIL FROM:<alice@hacker.com>
250 sender <alice@hacker.com> ok
RCPT TO:<bob@secure.net>
250 recipient <bob@secure.net> ok
DATA
354 go ahead
From: [Alice Hacker] <alice@hacker.com>
To: [Bob Smith] <bob@secure.net>
Date: Mon, 12 Apr 2010 14:21:26 -0400
Subject: Test Message

Hi there!
This is supposed to be a real email...

Have a good day!
Alice


.
250 ok:  Message 222220902 accepted
QUIT
221 myrelay.domain.com
Connection closed by foreign host.
[user@host]#

 ---

  [admin@sec-emps62 ~]# cat m1.sh
 {
  sleep 2;
  echo 'helo test.com';
  sleep 2;
  echo 'MAIL FROM:<Test@test.com>';
  sleep 2;
  echo 'RCPT TO: <kyle@test_dest.com>';
  sleep 2;
  echo 'DATA';
  sleep 2;
  echo -e 'To:kyle@testdest.com\nMIME-Version: 1.0 (mime-construct 1.9)\nContent-Type: application/zip\nContent-Transfer-Encoding: base64\n\n';
  dd if=/dev/urandom bs=4 count=10 2>/dev/null | openssl base64;
  echo '.';
 } | telnet 172.16.233.51 25

Netcat

    /usr/bin/nc smtp.domain.com 25 < /tmp/message

EHLO tyo270.gate.nec.co.jp
MAIL From:<m-ozawa@cnt.nic.nec.co.jp> SIZE=300981
RCPT To:<m-ozawa@wx.cnt.nesic.jp.nec.com>
DATA

...

.
QUIT