search function not working

Greetings DJeffries62,

If the Search function stopped working in the Mail app only, you may want to start by quitting the Mail app, and relaunching it to see if that fixes the issue. This can help to reset the Mail app software to correct any app specific issue. Here's how: How to force an app to quit on your Mac - Apple Support.

If you have tried this step and still have an issue, you may want to restart the Mac to see if this helps correct the problem. Often this simple step will refresh the apps and software on the device to solve numerous problems you may encounter. Here's a guide to help: Shut down or restart your Mac - Apple Support.

If this does not correct the issue, please provide more information about the behavior you're experiencing when you try to search in the Mail app. Do you see an error message? If so, what does the error say? If not, what exactly does happen? The more information you provide, the quicker others in the Apple Support Communities can help to isolate the issue and offer steps to support your exact issue.

Best wishes!

DJeffries62, We’re glad to hear that things are working as expected again. Thanks for using the Apple Support Communities. Cheers!