Outlook 2007 oab synch slow

Posted on 2009-12-22
Last Modified: 2012-05-08
I have just installed a Windows SBS 2008 server which includes Exchange 2007. I am having a problem with Outlook 2007 clients being very slow when attempting to download the Offliine Address Book during a send/receive. In fact it never really seems to finish. This is affecting all of our stations but one, the one expception being an Outlook 2003 user. Any suggestions?
Question by:linknetworks
    LVL 47

    Expert Comment

    Have you installed SP2 for the Office 2007 Users yet?

    Check to see if cached Exchange Mode is on.
    Under Tools>Account Settings>Open Users Account Details
    Under Exchange Server Name
    Remove Tick for Use Cached Exchange Mode

    Also, know this may sound silly but check that the 2007 users all have working mapped network drives. Look for any that may be disconnected. If you see any, remove them.
    Also check their My Documents. Look for any shortcuts that no longer work. If there are any, remove them.

    Author Comment

    We have SP2 installed. I have tried with and without cached exchange mode with the same results. No disconnected mapped drives.  No shortcut issues.

    Author Comment

    Forgot to mention that all stations are Windows XP Pro SP3.

    Accepted Solution

    I may have resolved the issue by changing the permissions on the oab folders physical location. I will monitor for the next 24 hours.
    LVL 11

    Expert Comment


    could you check the url for the oab. I have had the same issue before.also what you could check if you find entry for the oab generation (guid) under the exchange malbox folder/cas/oab and the client access servers that you have in your environment.if you dont find it, what you could possibly try is restart the msexchangefds service.

    and also check if you have autodiscover entry added in your dns and do a test on outlook by pressing control and doing right click on the icon on the taskbar.see if it passes.

    all the best

    Author Comment

    changing the permissions seems to have solved the problem.

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