Ok but anybody with a zero inbox is just shunting off most of their mail to subfolders they will never open. That’s more organized, but it belies a general problem with email.

Also, your email client shouldn’t be loading all of your messages. It shouldn’t matter to your iPhone how many unread emails are in your inbox. If there’s something your company is doing that requires an iPhone to open 130,000 emails, then it is absolutely your company’s fault.