Today I received a spam message that said it came from my account and so sailed through my filters. Is it possible that my PC is infected in any way and is sending these out? Peter Beaven
It's unlikely. The mail headers you attached show the message originated in Gomel, Belarus, so it definitely didn't come from your PC. It's probably a case of spamming software being used to forge the From: address to make it the same as the To: address (ie yours), instead of using the address of some innocent bystander.
However, if you are unlucky, then you are that innocent bystander, and millions of spams have been sent out with your forged address. You could therefore get thousands of "bounces" and undelivered returns from ISPs who know for a fact that you didn't send it.
Anyone can find out where an email probably originated by pasting the headers into http://emailtrackerpro.visualware.com/
