My iPad Air is running on iOS, is there a way to have smart mailboxes the same way you can have them on the Mac? And possibly even to sync them? I've read some articles about this subject which hint that it's possible, but they only talk about those standard mailboxes like "VIP", "Today", etc. What I'm looking for is something where you enter specific criteria, like one criteria would for example be that the sender contains the word "Alex", then all emails containing "Alex" would land in that folder. That's quite important to me as I check my mails (almost) only on the iPad. I use Gmail if that makes a difference.