When you send someone an email message, his email program will display your email address in the "From" section of the message headers. This is convenient most of the time, but there may be occasions when you want to send an anonymous note--perhaps to a co-worker who needs to shower more often, or to pull a prank on a friend. While you cannot hide a return address completely, you can use an anonymous email service to display a completely different (and fake) return address for your message.
Visit an anonymous email service like Send Anonymous Email, Send Email Message or Dead Fake using a link in Resources.
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Enter a fake "From" address; this is who the recipient will see as the message sender.
Use a real domain name for the fake address; using a non-registered domain name usually means the message will be caught by a spam filter and not reach the recipient.
Enter the recipient's email address in the "To:" field.
Enter your desired subject and message body.
Fill out the CAPTCHA box (the random letters and numbers that appear in the image). This prevents spammers from programming a bot to use the form to send anonymous spam.
Click "Send" to send your email.