I am using the built in email client to auto retrieve gmail every 2 hours. It has been working great over the past few weeks however recently the @ symbol in the top right of the screen will not go away even though I have no new mail and deleted the old ones. Tried rebooting the phone/deleting headers yet the @ sign won't go away. I have confirmed that my gmail does not have any new email.
Try Nokia Messenging. It works awesome. I tried using the built-in app to fetch my mail thru IMAP, never worked. This new app is great, with 2 second setup.