This is a warning I get frequently. What is causing it?
Event Type: Warning
Event Source: MSExchangeIS Mailbox Store
Event Category: General
Event ID: 1025
Time: 10:11:54 AM
An error occurred on database "First Storage Group\Mailbox Database".
Function name or description of problem: Restrict/SetSearchCriteria
Error: 1162 Warning: fail to apply search optimization to folder (FID 5-87403) Retrying without optimization.
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