Three email friends received multiple copies of an email from me entitled I found it. One friend received approx. 5000 copies. My email account is hotmail. I deleted all files from my mailbox (junk, sent..). I phoned Applecare and was told that it could not be a virus. I also phoned a local Mac repair business and they confirmed that. Can you suggest what might have caused the problem and whether there is a need for me to do something to prevent similar incidents?