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Disable or enable caching for shared folders?

    Question

  • Dear All,

    We are experiencing Outlook 2016 synchronization issues as described in the article below.

    Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook

    https://support.microsoft.com/en-us/help/3115602/performance-and-synchronization-problems-when-you-work-with-folders-in

    We are running Exchange Server 2010 SP3 UR27 & Outlook 2016 (1902 build 11328.20158) on Microsoft Surfaces and planning to migrate to Exchange Online in the near future.

    One of the solutions listed in the article is to disable caching of all shared folders. This solution works for us. However, the article also says "it is recommended to keep caching enabled for Office 365 mailboxes and mailboxes on a slow network". With the planned migration to Exchange Online in mind, what's the best setting? Disable or enable caching for shared folders?

    Many thanks in advance,

    Ollie1970

    • Edited by ollie1970 Friday, May 17, 2019 7:22 AM
    Friday, May 17, 2019 7:18 AM

All replies

  • It really depends on your needs.  One factor is whether you want all the data from shared mailboxes being cached on each user's workstation.  Another is that performance may suck if you don't cache.  I suggest you try it out and see.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Celebrating 20 years of providing Exchange peer support!

    Saturday, May 18, 2019 6:29 AM
    Moderator
  • It really depends on your needs.  One factor is whether you want all the data from shared mailboxes being cached on each user's workstation.  Another is that performance may suck if you don't cache.  I suggest you try it out and see.

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Celebrating 20 years of providing Exchange peer support!

    Agree with Ed, if you want to download all the shared folders for this mailbox, better open it in separated Outlook profile, all you should continue to keep caching enable to avoid the performance issue, although it is not recommended.

    Regards,

    Manu Meng


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    Monday, May 20, 2019 7:33 AM
    Moderator
  • Just checking in to see if above information was helpful. Please let us know if you would like further assistance.

    Regards, 

    Manu Meng


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to shareexplore and talk to experts about Microsoft Teams.

    Friday, May 24, 2019 10:26 AM
    Moderator