I have an issue with my IMAP account, it disappears totally from the phone every couple of days. I have to reconfigure it from scratch. My Exchange Email account is fine all the time. I have seen several posts with this issue on the S3 all over the web but there isnt any one that has a solution. Hopefully it gets solved quicker than the "Email Stuck in Outbox" issue thats been with 4.0.3 for over 6 months. Google dont seem to be in any hurry to issue updates. There should be core updates independent of the provider for these types of issues.