Every so often we are contacted with a MacOS Outlook client that his having trouble searching. The symptoms typically resemble something like “No Results” found or a severely limited set of results returned, such as only the past week’s worth of e-mail.
Outlook on MacOS utilizes the built-in Spotlight indexing system for its search, and sometimes this gets messed up. The following steps are the first to take when trying to remedy this situation.
If you are running a version of MacOS older than Mojave (10.14) – the solution is fairly simple. Just download and run the “Outlook Search Repair Tool” found here: https://docs.microsoft.com/en-us/outlook/troubleshoot/outlook-for-mac/useful-tools
For those that are running Mojave (10.14) or newer – the following steps should accomplish the same thing (although more complicated):
More in-depth solutions can be found here: https://support.microsoft.com/en-us/help/2741535/outlook-for-mac-search-returns-no-results-and-task-items-are-not-displ