email virus crap

[cimorene]

my fanfiction email address gets a lot of 'returned message' mails, which means some kind of virus something. but i have another email account *with the same free provider* that i use more often which gets nothing of the kind, and then there are aol accounts on the computer too. the operamail people sent a free thing that's meant to clean viruses from the computer. but given these circumstances, i find it highly doubtful that the computer actually has a virus. why would they think those spammy things meant that i did? don't they usually, on the contrary, indicate that someone *else* has one of those address-book-copying viruses that masks the sender's address?