Frustrating problem. I have searched and tried all suggestions to date but have had no success with solving this. I have two POP mail accounts with Comcast. Despite deleting all email from both accounts, emails reappear when deleted from the iPad. I tried deleting the accounts on the iPad and "reinstalling" them, and being certain to additionally remove the emails from the trash folders. There are no other folders than the inbox and trash only appears if there are deleted emails. There is no option to change to an IMAP configuration. I suspect that some change was made by a now deleted application, but I am not familiar enough with the iPad OS to know if that is a reasonable possibility. Doing a complete reinstall, given the jailbreak and my personal configurations, would be a major time eater. All the icons become unsorted from their tidy category hierarchy. So any of you gurus out there have an answer? Best regards, and thanks for any help.