I have received two emails since january from my sisters email address, that she did not send to me. She is the only person with access to her emails and was on holiday when they were sent. The emails are advertising wholesale electrical companys and were sent to everybody in her address book. click here This is the link on the latest one but the link on the first email has expired and the page can not be found. My sisters pc is protected and free of malware and virus' but that is not to say she has not used another pc to activate email. Is this a serious problem and what can she do about it? Thanks for any advise.