With a large volume of letters, find the right message is very and very difficult. It is for such cases in the email client a search mechanism is provided. However, there are such unpleasant situations when this very search refuses to work.
There may be a lot of reasons for this. But, there is a means that in most cases helps to solve this problem.
So, if you stop working, you open the "File" menu and click on the "Parameters" command.
In the Outlook Settings window, we find the "Search" tab and click on its header.
In the Sources group, click on the "Indexing Parameters" button.
Now choose "Microsoft Outlook" here. Now click "Edit" and go to the setting.
Here you need to deploy the list "Microsoft Outlook" and check that all checkboxes are in place.
Now remove all the checkboxes and close the windows, including Outlook himself.
In a couple of minutes, we again do everything, the actions described above and put all the checkboxes in place. Click "OK" and in a couple of minutes you can use the search.