Mac mail preview pane missing

The missing preview pane in Mac Mail!

Don't worry, I'm here to help you troubleshoot and potentially fix the issue. Here are some steps to try:

  1. Check the Mail preferences: Go to Mail > Preferences > Viewing. Make sure the "Preview" checkbox is selected. If it's not, select it and see if the preview pane reappears.
  2. Reset the Mail preferences: Sometimes, resetting the Mail preferences can resolve issues like this. To do this, go to Mail > Preferences > General, and then click on the "Reset" button at the bottom of the window. This will reset all Mail preferences to their default values.
  3. Check for conflicts with other apps: If you have other apps installed that also use the Mail app, they might be interfering with the preview pane. Try closing all other apps and see if the preview pane reappears.
  4. Try a different mailbox: If the preview pane is missing in one mailbox, try switching to a different mailbox to see if the issue is specific to that mailbox. If the preview pane appears in the other mailbox, it might be a problem with the specific mailbox.
  5. Check for corrupted mailbox files: If the preview pane is missing in all mailboxes, it's possible that one or more mailbox files are corrupted. Try moving the mailbox files to a different location and then re-importing them into Mail. You can do this by going to Mail > Preferences > Accounts > [Your Account Name] > Advanced > IMAP > Move mailbox files to a different location.
  6. Reinstall Mail: If none of the above steps work, you can try reinstalling Mail. To do this, go to the App Store, search for "Mail", and click on the "Install" button. This will reinstall Mail and potentially fix any issues.
  7. Check for macOS updates: Make sure your macOS is up to date, as updates often include bug fixes and improvements to Mail.
  8. Try a different email account: If the issue is specific to one email account, try setting up a different email account in Mail to see if the preview pane appears.

If none of these steps resolve the issue, you can try searching online for more specific solutions or reaching out to Apple Support for further assistance.