How to reinstall apple mail sierra

To reinstall Apple Mail on macOS Sierra, you can follow these steps:

Method 1: Reinstall Apple Mail from the App Store

  1. Go to the App Store on your Mac.
  2. Click on the "Updates" tab at the top of the window.
  3. If Apple Mail is listed, click the "Update" button next to it.
  4. If Apple Mail is not listed, click on the "Search" tab and type "Mail" in the search field.
  5. Click on the "Mail" app icon to open its page.
  6. Click the "Install" button to reinstall Apple Mail.

Method 2: Reinstall Apple Mail using the Terminal

  1. Open the Terminal app on your Mac. You can find it in the Applications/Utilities folder, or use Spotlight to search for it.
  2. Type the following command and press Enter: sudo rm -rf /Applications/Mail.app
  3. Type your administrator password when prompted.
  4. Wait for the command to complete.
  5. Type the following command and press Enter: sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/Install\ macOS\ Sierra
  6. Follow the prompts to reinstall macOS Sierra, which will also reinstall Apple Mail.

Method 3: Reinstall Apple Mail using a Time Machine backup

  1. If you have a Time Machine backup, you can restore your Mac to a previous point when Apple Mail was working correctly.
  2. Connect your Time Machine backup drive to your Mac.
  3. Open Time Machine and select the backup you want to restore from.
  4. Click "Restore" and follow the prompts to restore your Mac.
  5. Once the restore process is complete, Apple Mail should be reinstalled.

Additional steps

After reinstalling Apple Mail, you may need to: