Stop SPAM with Microsoft's free Intelligent Message Filter(IMF)
During last week's Technical Roadshow event in Edinburgh many people asked how best to stop SPAM messages for users of Outlook Web Access(OWA) - in response I explained a little about the Intelligent Message Filter(IMF) which is a free download for Exchange - it provides sophisticated SPAM filtering at the email gateway/exchange level and hence is applicable for all clients including OWA.
Eileen Brown's blog includes many excellent BlogCasts(concise practical mini-webcasts) including some showing the IMF.
Whilst at the roadshow I referred to the following useful sources of information on the IMF and messaging security:
An article detailing how to check archived messages for SPAM on the Exchange Server