Enable "Trash" button option for incoming Notifications (like the Mac Mail app)
You know how the native Mac Mail app has two button options for incoming mail notifications banners, "Trash, and Reply"? Yeah, we need that in Airmail :)

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CWL commented
Nope, doesn't work with notifications. Problem is that notifications stay on the screen, whilst banners go away after a while. I want the banner function so that it disappears after a certain time, and also want two options, TRASH and REPLY rather than just selecting one.
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Seth Orion Viebrock commented
All you have to do is change the notification type for Airmail in the Notification Center settings from banners to alerts. Then, in Airmail "General" preferences, enable notifications and choose "Trash" or "Archive" for the notification type.