Please note that I’m using Exchange 2007 with a separate CAS, HT, and Mailbox Server.First, let’s go over what is happening and why it is and then we’ll go over how we can force the OAB (Offline Address Book) or GAL to update with these users.Download and install the utility, then inspect your mail queues, monitor the Exchange server's memory, confirm there is enough disk space and check the CPU utilization. Solar Winds provides this fully-functioning freebie, as part of their commitment to supporting the network management community.Free Download of Solar Winds Exchange Monitor As an alternative to clicking in the Exchange Management CONSOLE, you could type commands in the Exchange Management SHELL.If you are not seeing correct contact information in the GAL for someone that has a valid email address (i.e.someone who just received a CUMC email account, a new student, someone who recently changed their directory information) please use the steps below to synchronize your computer's locally cached version of the GAL.Remember when I said none of these were the fix to my issue?
Then you right clicked the OAB and selected ‘Update’. The default time is 480 minutes and of course, we don’t want to wait that long.Using cmdlets like those below will save you time, more so when you realize that every Exchange 2007 configuration task has a faster command-line equivalent.Furthermore, certain commands are ONLY available in the Shell, for example, new-Global Address List.You can read all about how OAB via DFS works by visiting this link about Exchange polling times and OAB distribution.Now that we know it isn’t working by design, how do we fix it? We do this through the Exchange Management Shell: Make sure you substitute in your Client Access Server where the OAB is distributed with ‘servername’ above.