Outlook's email search function is an incredibly useful feature for anyone who receives a high volume of emails on a daily basis. However, there may come a time when you notice that the search function is not working properly, which can be extremely frustrating. Some of the common causes behind Outlook email search not working include indexing issues, corrupted files, outdated software, and incorrect search settings. Fortunately, there are several steps you can take to troubleshoot and resolve this issue, such as rebuilding the search index, repairing your Outlook installation, and updating to the latest version of Outlook. With a little bit of patience and some troubleshooting, you can get your search feature back up and running in no time, and get back to being productive with your emails.