Exchange Search keep getting very slow or user cannot find any object RRS feed

  • Question

  • Dear All,

    We have a large environment of about 20000 Users, There are 8 servers that hold the active database, often users complain that they cannot find object , of they login by outlook or by OWA, I have check the database ContentIndexstate is all healthy,

    I have already checked the below,

    Need to understand what need to be checked next when contentindex is healthy ,

    I have also tried the "Test-ExchangeSearch" sometime i get result for larger mailbox i dont get the result,

    Need some more insight to understand what goes behind and fix the issue,

    Regards - Hasan Reza

    Monday, June 29, 2020 2:40 PM

All replies

  • Hi,

    What's the detailed version of your Exchange server and outlook client?

    According to your description above, does the issue occur both OWA and outlook (cached or online mode)?

    You could check if there is any related error logs in event viewer to help troubleshooting.

    Please also check the below links which may be helpful to your issue:

    Index search is very slow

    Test-ExchangeSearch: successful but slow

    Outlook 2016 now uses the Exchange Search Index in priority 

    And the official article about: Troubleshooting Outlook search issues


    Joyce Shen

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

    Tuesday, June 30, 2020 2:39 AM
  • Hi,

    Do suggestions above help? If you have any questions or needed further help on this issue, please feel free to post back. If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well.


    Joyce Shen

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

    Friday, July 3, 2020 5:52 AM