Is there a way to stop email from automatically opening? The problem is mostly in the junk mail–if I open a legitimate email and delete it, my iPad automatically opens a piece of junk email, then I’m bombarded with tons of junk email thereafter.
This is normal behavior for Apple’s Mail app and unfortunately, right now there’s no way around it. If you run iOS 10 or above, you can delete the native email app (Mail) and use another mail app that has this functionality instead.
A couple of recommendations for replacement are Airmail, Spark, Inbox by Google, and others. Check those and some others out and see if they suit you better!