After upgrading mac os lost mail

Frustrating!

Don't worry, I'm here to help you recover your lost mail after upgrading to a new version of macOS. Here are some steps to try:

Check the Mail app's settings

  1. Open the Mail app on your Mac.
  2. Click on "Mail" in the top menu bar and select "Preferences" (or use the keyboard shortcut Command +,).
  3. In the Preferences window, click on the "Accounts" tab.
  4. Check if your email account is still listed and configured correctly. If it's not, you may need to re-add your account.

Check the Mailbox folder

  1. Open the Finder and navigate to the "Mailbox" folder, which is usually located in the "Library" folder (~/Library/Mailbox).
  2. Check if your email messages are still stored in this folder. If they are, you can try importing them back into the Mail app.

Try recovering from a backup

  1. If you have a backup of your Mac, you can try restoring your Mail data from the backup.
  2. Connect your backup drive to your Mac and open Time Machine (or your backup software).
  3. Select the backup that was created before the upgrade and restore the Mail data.

Check for corrupted files

  1. Sometimes, corrupted files can cause issues with the Mail app. Try deleting the following files:
    • ~/Library/Mail/V2/MailData
    • ~/Library/Mail/V2/Mailbox
  2. Restart your Mac and try opening the Mail app again.

Re-import your email data

  1. If none of the above steps work, you can try re-importing your email data from your email provider's website or using a third-party email client.
  2. Go to your email provider's website and sign in to your account.
  3. Look for an option to export or download your email messages.
  4. Save the exported messages to your Mac and then import them into the Mail app.

Contact your email provider

  1. If none of the above steps work, you may need to contact your email provider's support team for assistance.
  2. They may be able to help you recover your lost email messages or provide additional guidance on how to resolve the issue.

I hope these steps help you recover your lost mail after upgrading to a new version of macOS!