Is it? I mean Outlook 2003+ comes with a pretty good spam filter and the Windows XP/Vista firewall does its job to a degree. For a corporate user ESS will be pointless, because spam emails will still be being filtered through the gateway which will result in resources on the server being used where spam will eventually be blocked on the client. Outlook 2003+ is doing this already, so how exactly will ESS make that better?! The only thing I can see being useful is the anti-virus. The anti-spam and firewall functions sound completely useless. The fact ESET have gone for a client-only approach gives me the feeling they're falling behind the rest of their competetors who are doing this sort of thing already, but from both a home and a corporate user point of view.