I am creating custom folders inside outlook using mAPIFolder .
I need to keep a collection of all folders inside a collection class.

However I want to skip special folders like inbox, deleteditem folders etc
inside my collection class since it doesn't support all events like user
created folders like drag , drop, or delete or rename.
I want to keep my collection class less loaded.

At begining of outlook , i can traverse to all folders with a recursive
function.
here I want to check if this folder is "Special folder".

How can I achieve it?