Mail item will not open when clicked

Hello James Mcmullan1,

If you're using macOS Ventura on your iMac, you can follow the steps on this page: If you can’t open Mail on your Mac - Apple Support. If you have a different macOS on your iMac, click and choose the correct macOS from the drop-down list on that page and follow the steps.

If you can’t open Mail on your Mac

If you try to open a version of the Mail app that can’t be used on your Mac, an alert message is displayed.

Make sure the version of Mail you’re trying to open is located in the Applications folder. In the Finder, click Applications in the sidebar, then double-click Mail.

If the problem continues, contact Apple Support.

If you're experiencing other issues, check out the guidance offered on this page: Troubleshoot email problems in Mail on Mac - Apple Support.

Kind regards!

James Mcmullan1,

Great news. If you run into any other issues, you're invited to create a new thread so the community can assist once again. 

Take care.