Using Classic Outlook on Windows for personal email, calendar, and contact management
If you change the name of the folder that's in the wrong spot alphabetically (such as by putting a "z" in front of the name), it will move the folder to the correct spot (the end of the list in my "z" example).
It doesn't works for one simple reason: the program doesn't lets you change the name for the default folders: let's say I want to move the "Drafts" folder way down to the bottom, according to your suggestion, I'd have to rename it to something like "Z Drafts", am I right?, but turns out, the damn "New" Outlook won't even let me change that folder's name.