Three years ago, our mail flow suddenly started increasing, with lots of spam in it. Most of my users, including my boss, started complaining that their mailbox was unreadable with a spam percentage averaging 60%! The efficiency of my colleagues and my company was in real danger, some would miss important emails to deal with and some would miss appointments.
I installed GFI MailEssentials™ version 9 and started training the Bayesian filter. Two weeks later all the mailboxes were clean with very few false positives. The auto-white list feature helped us a lot in reducing those false positives. DNS Blacklist and SURBL are also great features (catch 50% of spam here).
Today, none of my colleagues complain anymore, mailboxes and backups are clean! Two months ago we had a crash on GFI MailEssentials when installing an MS patch on our Exchange Server. Users really appreciated the difference when GFI MailEssentials was working again. Furthermore my boss saw the efficiency of the filter and knew where the IT budget was going! We are not wasting our time anymore trying to manually clean our mailboxes, and time is money.
Laurent Bourhis
IT Manager
DUCRETET Group
Clichy, France
November 2005