How to find Special folders?

[Neetu]

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?

 

[Ken Slovak - [MVP - Outlook]]

By special folders do you mean the default folders?

For most of them there are properties in the Inbox folder that provide the
EntryID's of the default folders as PT_BINARY properties. For example:

Calendar PR_IPM_APPOINTMENT_ENTRYID (0x36D00102)
Tasks PR_IPM_TASK_ENTRYID (0x36D40102)
etc.

Some are found by checking for properties in the Store object:

PR_IPM_OUTBOX_ENTRYID (0x35E20102)
PR_IPM_SENTMAIL_ENTRYID (0x35E40102)
PR_IPM_WASTEBASKET_ENTRYID (0x35E30102)

You can see those properties with a MAPI viewer such as OutlookSpy.