If you're repeatedly prompted for your username and password, or if you're getting an 'invalid credentials' or 'web login required' error, we suggest that you verify the following settings in your mail client:
- Re-enter your password to ensure that it's correct. Keep in mind that passwords are case-sensitive.
- Make sure your mail client isn't set to check for new mail too often. If your mail client checks for new messages more than once every 10 minutes, your client might repeatedly request your username and password.
- Try clearing the CAPTCHA.
- If you're a Google Apps user, visit https://www.google.com/a/yourdomain.com/UnlockCaptcha in order to clear the CAPTCHA. Be sure to replace 'yourdomain.com' with your actual domain name.
- Try changing your password according to our tips on creating a strong password.