[Paul James]

When I send an email to somebody in my outlook contacts the email bounces with a "system administrator" message saying the message was not relayed.

When I try to send another message to the same recipient their details have dissapeared from my contacts list. I'm running "Outlook"

This only seems to be happening when using my "ducatiman" account, not my work accounts which all use the same broadband connection.

I'm currently running a full virus scan using that latest updates but all it has found so far are loads of tracking cookies.

Is there a new virus on the block causing this?

Any ideas?