Hacking Tip: Forge E-mail Addresses

Categories:Hacks, Video
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The purpose of this video is to show an e-mail security flaw using telnet that allows hackers to send e-mails using anyone’s e-mail address. Thankfully, many major e-mail providers have software that blocks this. My intention is to make people aware of this flaw so that other e-mail providers can protect themselves as well. An example program for protection can be found at http://www.zsty.com/email.


  1. Motoryzacja
    May 7, 2011 at 4:45 am

    Great read. I also think it could be a bit longer 😉

  2. mcc
    September 19, 2011 at 8:41 am

    gaalo gaalo dhashay ey wasakh beena waasiin an la fahmayn hadalkooda

  3. basvaraj
    December 12, 2011 at 7:17 am

    its the great tips for my point of u

  4. Square Mine
    January 17, 2012 at 10:00 pm

    it isn’t a flaw, it’s jus the smtp server prosessing the mail.
    you can even configer outlook to use a different mail for sending.
    doesn’t work for receiving 😉
    Square Mine

  5. Pedro
    July 26, 2012 at 4:08 am

    Hi! i’ve tried to send myself an e-mail with a fake address to see if i could pull it off: i couldn’t. I got to the part where i had to type “MAIL FROM: …” to which the screen responded “500 Send hello first”. I don’t know what’s up with that, it kept saying that to whatever I typed. I actually tried typing “hello”, and of course, it didn’t recognize the command. (At this point you’ve probably noticed that i have no idea what i’m doing). Anyway, if you could help me, thanks

  6. kacks
    March 3, 2013 at 2:58 pm

    windows 7 doesn’t have telnet client installed.just windows xp???

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