Notification option for "Smart" filtered mail only
For the iOS version, similar to what exists for VIP notifications -- I'd like notifications only for the emails that Airmail already classifies as "Smart." This would prevent me from having to laboriously create a VIP list from scratch, and make it less likely that I'd miss important emails from people I hadn't added to a VIP list.
This is a feature that Outlook for iOS has, and is incredibly useful. And you're already doing the Smart filtering in Airmail anyway!