Exchange Server 2003 Intelligent Message Filter update
The IMF update for Exchange Server 2003 will skip the traditional first Wednesday update of each month and the next update will be in the thrid Wednesday.
This is just a quick note that the regularly scheduled Exchange Server 2003 Intelligent Message Filter update that was set to be released on 1/7/2009 will not be happening. The next release for this update will be on 1/21/2009.
For those that might not know, this update is released on the first and third Wednesday of every month except for the month of December. December will see only a release during the first week of the month.
Read more at source: http://msexchangeteam.com/archive/2009/01/06/450362.aspx