From Carl Katz, President, Katz Networks:

Personally my SPAM management is down to 30 seconds a day on average - I used to spend about five to ten minutes going through my SPAM folder, pulling out legitimate messages, then deleting the SPAM messages. currently, all my mail is first redirected to my SPAM/Virus Filtering service provider, is scrubbed for viruses and SPAM and finally forwarded to my Microsoft Exchange mail server at 808 Nelson Street (Nelson Square). There is no appreciable delay in mail delivery.

After an initial tweaking period the first week, the SPAM literally stopped cold - it was reduced to one or two messages every couple of months. Twice a day I receive an emailed report that tells me which 'borderline' messages are being held back (about five messages on average). The frequency of the reports can be increased or decrease depending on your requirements.

If there is an incorrectly held message (.01% of all messages received), I can release and send the message to my inbox by simply clicking on a link in the 'held mail' report. I never see the most obvious SPAM (Viagra, Stock Promotions, Software Sales, etc) as it is deleted immediately upon arrival at my service provider. Also, I haven't received one single email containing a virus since I implemented this service for Katz Networks. This service is only available to clients who receive mail using their company domain name (i.e. katznetworks.com, microsoft.com), and is not available for ISP based email (telus.net, shawcable.com).