Wasn't there a virus going around a few years ago that would do that.  
it would send  an email from one computer  to another computer. but it 
looked like it came from third computer. 

I hope that makes sense.

John Ferrell wrote:

>While we are on the topic....
>I recently have received a lot of bounced messages that I did not send. I am 
>guessing that someone is using my email address when sending spam. They seem 
>to have stopped now!
>
>  
>
>
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