How to send fake anonymous mail using MS-Dos First connect with telnet to a mail server ( using MSDos type eg: " telnet smtp.gmail.com 25 " ) ( 25 is the defaul port for smtp service ) you will get something like " 220 mx.gmail.com ESMTP l21sm6755732nfc " Then say " HELO " You will get 250 mx.GMAIL.com at your service Then to send your mail, ( and remember some mail servers dont allow relay ) type: MAIL FROM: yourfriendsmail@gmail.com RCPT TO: yourfriendsmail@gmail.com DATA ( press enter ) type your message, tell your friend you got the pass to his/her mail.... Something like this From: yourfriendsmail@gmail.com To: yourfriendsmail@gmail.com Subject: Gotcha..... I got your email's password... . <-( see this dot at the left, this tells the server that the data is ready to be sent, the mail will be delivered if you put a " . " alone and press Enter. For more info read the smtp RFC at http://www.ietf.org/rfc/rfc0821.txt