I got several emails sent to me with my exact email address as the sender. How is this possible?

The "from" designation is MY email address, which should not be possible. I tried to look up the IP address, but can't get anything to come up.
I got several emails sent to me with my exact email address as the sender. How is this possible?
If you want to know who sent you the email...read on





How do I find out who sent the email?





the email message itself contains some information relating to the sender's identity.





In the headers of email messages sent via Yahoo! Mail, an Internet Protocol (IP) address that corresponds to the sender's Internet service provider (ISP) is included.





At the top of a message (above the date) is a line reading either "Standard Header" or "Compact Header."





Click on this link, and a menu will drop down with an option for "Full Header."





If you select "Full Header," a new window pops up containing the full header of the message.





See it? It's got tons of computer gobbledygook, but it also has some information you can use.





You should be able to find a line that contains an 8 to 12 digit number, separated by periods.





It might look something like this:


Received: from [123.456.78.91] by . . .





The "123.456.78.91" represents the unique IP address of the sender's ISP. Once you identify the IP address, you can run a "whois" search to determine which ISP provides this person with Internet access.





If there's more than one Received: line, read them from top to bottom (the topmost is the most recent.)





There are several utilities available on the web to run a whois search. Here's one web site that can help you to determine which service provider is responsible for the IP address:


路 http://www.geektools.com/whois.php


If the spam or abusive email is being sent from a Yahoo! Mail account and you are not using Yahoo! Mail, please forward an unedited copy of the message with full headers to





abuse@yahoo.com.





We'll evaluate the situation and take action per our Terms of Service. Spamming from a Yahoo! Mail account is not acceptable.
Reply:it is possible that one of your friends knows your password and is playing a prank on you.





i did that to my fiend and he ended up calling the police on me. they figured out the ip and asked me questions like did you do this, etc. i was almost put on probation...





the prank was that the e-mail said i was going to kill him. ::(





needles to say, i learned my lesson.... computers are not playthings:(