PART A: CONFIGURING SMTP SERVER
Once you have installed the QK SMTP server on your comp you must perform the following configuration.
1. Click on “Settings” button on the main screen,the Settings window pops up
2. On Settings window click on “Basic Parameter” tab
3. Set binding IP to “127.0.0.1″
4. Set port to “25″
PART B: SENDING FAKE EMAIL (EMAIL FORGING)
1. Click on SMTP server icon on your desktop to start your SMTP server to run(The icon is shown on the notification area of the taskbar if it is running). If it is already running then this step can be ignored
2. Goto command prompt(Start-Accessories-Command prompt)
3. Type exactly as follows
C:\>telnet 127.0.0.1 25Here 127.0.0.1 is the default IP of every computer.25 is the port number. SO you are connecting to the SMTP server running on your own computer. This step is very importand to send fake email.
NOTE: The IP 127.0.0.1 should not be substituted by any other IP.Heres the snapshot of what you see after step 3. Click on it to enlarge

4. After typing the telnet command in the command prompt you get entry to the server which displays the following message. The response of a OK SMTP server is given below. Message within Green color is only explanation.
220 Welcome to QK SMTP Server 3helo hacker (Type helo & any name followed by space)250 Hello hacker (Server Welcomes You)mail from:billg@microsoft.com (email ID can be anything of your choice. This is the ID from which fake email appears to have come from)250 billg@microsoft.com Address Okay (Server gives a positive response)rcpt to:admin@gmail.com (Type any valid recipient email address)250 admin@gmail.com Address Okay (Server gives a positive response)data (type this command to start input data)354 Please start mail inputFrom:Gates <billg@microsoft.com>To:admin@gmail.comDate:Sat Jan 5,2008 9:45 PMSubject:Test to send fake emailYou can create as many headers followed by the “:” symbol.