>Its interesting how these viruses come in waves.
>
>I'm getting one at the moment coming from "security@microsoft.com" subject line "Use this patch immediately !".
>
>I've had this a few times over the last few days. The subject line is just about plausible but the ! rather gives it away.

This has been the case since a while. We simply blocked that email at the server level. Also, if you upgrade the mail server you are using, you may run into the situation that this could be taken into consideration automatically at that level. The mail server we use has released a new version which has improved a lot those types of email.