I have read (I think) all of the associated threads re: the low on storage space message, and I haven't found an answer to my particular problem yet. The bottom line is that my default mail application is eating up 111mb of internal storage at the moment. I have long since deleted any account I had connected to, and have scoured the phone looking for every possible cache to clear. Someone suggested Gmail might be causing the problem, but the Gmail app and the Mail app are completely separate, storage-wise. Either way, all of my Gmail folders are empty at the moment. I would love to uninstall the mail app, but it doesn't look like that's possible, either. If anyone has any ideas, please help. I'm not big into running a thousand apps, but I absolutely hate warning messages that I can't clear.