[Soulhunter]

...is infected by a virus or trojan horse and sends spam? Let's say you've got several PCs and don't want to immediately check all of them manually, is there a way to 'remotely' trace down which one might be the one that's infected and used to send spam?

[PDCSolutions]

if you have a copy of the spam look at the header information, it should have information on the computer that was used to send it, the net name, local IP address ,ect, send a copy of it to: paul@pdcsolutions.co.uk and i will try to help you

[Ron V]

If you have a firewall, you can set it up to log or prevent SMTP altogether. You can then look at the log and figure out IP address of sender.It should be possible to do with WinXP SP2 firewall and other software based firewalls too.SMTP is port 25.