Undetecable mass-mailing virus?

[Enigmaman]

I have been receiving many e-mails every day saying 'undeliverable mail, return to sender' from people I have never heard of.

I am running Norton Internet Security 2004 under Windows XP and use OE 6.

It looks as if there a virus on my system causing this, but I have downloaded all the latest updates from NAV and run full scans, but nothing shows up.

Any suggestions please?

 

[LawnBoy]

Spammers use return addresses that aren't their own. Sounds like some spammer has your address and is using it as the "from" address in the spam. When the recipient of the spam isn't a valid address, you get the undeliverable msg.

Nothing you can do about it that I know of.