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Thread: Outlook Connector with realy large Mailboxes

  1. #1
    Join Date
    Dec 2009
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    Default Outlook Connector with realy large Mailboxes


    Is there a limit how large a mailbox that is synced with the OutlookConnector should be?

    The user has some really big project folders shared to his account.
    The *.zdb file in the profile has 11GB.

    Outlook dies the most of the times. Could be the big profile the problem, or should I search somewhere else?


  2. #2
    Join Date
    Sep 2006
    Rep Power


    Technically, we should be able to handle 11G, but that's pretty huge. Up until recently, Microsoft recommended a 2G max. They've since changed that, but 11GB is pushing it.

    You say Outlook dies most of the time. How does it do that? Do you know how big the mailbox gets before it dies?

    There are a few things you can do, of course:

    1) Archive things to make your mailbox smaller
    2) Download headers only -- you can set that up when you set up the profile. That will make your mailbox a lot smaller
    3) If you've got search protocol host -- disable that (or at least disable indexing on zdb's).
    4) Disable some virus checking.

    If you still have trouble, you can enable ZCO logging (not verbose, just logging and http) so we can see where it dies. The log will be huge, though, and it will perform even more slowly.

    If it dies with a crash, then we'll generate a core dump in %TEMP%\zco-cores.

    Also, there is a wiki article:

    ZCS Connector for Outlook Performance - Zimbra :: Wiki

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