Michael Caton at eWeek has been using ClearContext for a couple of months and wrote a brief review:
"When I installed the software, it created prioritization rules by
looking at my e-mail history. Those rules generally did a good job of
moving messages, such as internal e-mail including attachments, to the
top of the queue."
I would like to address one point in the review. Michael mentions
that he saw some performance issues using Outlook over a VPN.
After speaking with him, it sounds like he’s accessing his Exchange
server in online mode while at home. Switching to cached exchange
mode in Outlook 2003 or offline in earlier versions of Outlook will
mitigate the problem.