I've got a 4S, one gmail account, and an iMac. I finally figured out why my old email was staying on the Mac after deletion (I have to hit Mail Account and then empty deleted items). That got rid of 3000 old emails in the Mac. But on the 4S it still shows 3000 emails under All Mail. What's the best way to deal with that? Thanks in advance, the email thing is confusing. On the Mac there's Trash, there's another Trash under the Gmail tab, there All Mail, Spam. Kind of a confusing email app.