If you have recently changed your Gmail password, you will need to update the Mail app on your Mac or iPhone.

For macOS

Step 1

• Open System Settings
• Click the Apple menu  and select System Settings (or System Preferences on older macOS versions).
• Click Internet Accounts.
• Select your Gmail account.

Step 2

• Re-authenticate Your Account
• If your password has changed, you'll likely see a message saying, "Account needs attention" or similar.
• Click Re-enter Password or Sign in.
• A Google sign-in window will appear—enter your new Gmail password and follow the prompts to allow Mail access.
• Once signed in, close the settings window.

Step 3

• Restart Mail App
• Quit the Mail app and reopen it.
• Check if your Gmail is syncing properly.

For iOS (iPhone & iPad)

Step 1

• Open Mail Account Settings
• Open the Settings app.
• Scroll down and tap Mail.
• Tap Accounts.
• Select your Gmail account.

Step 2

• Sign Back Into Gmail
• If prompted, tap Re-enter Password or Sign In.
• A Google login page will open—enter your new Gmail password and follow the prompts.
• Allow access if required.
• Tap Done to save changes.

Step 3

• Restart Mail App
• Close the Mail app and reopen it.
• Check if Gmail is syncing properly.

Troubleshooting

 Still Not Working? Remove & Re-Add Gmail

• Go to Settings > Mail > Accounts.
• Select your Gmail account and tap Delete Account.
• Tap Add Account, choose Google, and sign in with your new password.