PLEASE NOTE THAT THIS IS AN ENTRY PROVIDING INFORMATION IN THE HOPE IT MAY HELP. I CANNOT HELP YOU WITH SPECIFIC PROBLEMS WITH YOUR ACCOUNT.
I recently got a very annoying error message in an iPhone regarding the password/user resolution for my Gmail account. I again and again kept entering the correct combination and nothing seemed to work. I thought I was mistyping, or perhaps my fingertips suddenly got fatter… I tried logging in via the website and lo and behold I could indeed login.
- Quit all mail clients that are having the issue. For the iPhone or iPad you can open the multi-tasking menu and tap the mail icon for a few seconds. A red minus sign will appear at the upper left-hand corner. Tap the minus sign and that quits the application.
- Open a web browser (Safari will do) and go to the following link: http://www.google.com/accounts/DisplayUnlockCaptcha
- Login using your credentials for the troublesome account to verify the account.
- Open again your Mail app and voilà