Hi, I think my PC is infected with some kind of spamming malware. Norton continually pops up with email error messages of 421, 451 or 550 types. It says its failing to send form a wide reange of different addresses and subjects such as viagra and shopping specials. Messages pop up every 2 seconds and the only way to avoid this is by running norton 360 in silent mode.
I'm running Windows 7 and norton 360. Any ideas please. Tried everything I've read on google including Hijack this, Spybot, Malware bytes and a few others.