If you are like me and use fold­ers to orga­nize your email, you prob­a­bly found these don't syn­chro­nize auto­mat­i­cally — just the inbox does. Well I finally fig­ured out how to make them syn­chro­nize. It isn't hard, just clumsy. You might find this useful.

It is prob­a­bly same pro­ce­dure on all Win­dows Mobile 6.0 phones, but don't know about 6.1.

1. Go into Out­look mail on your phone so you see your inbox mes­sages.
2. Choose Menu->Folders. You prob­a­bly see Deleted, Inbox, Out­box, Sent, and Draft fold­ers.
3. Choose Menu->Show All Fold­ers. Now you will see all the sub-folders of your inbox and other items. This menu item tog­gles between "Show All" and "Show Man­aged".
4. Choose Menu->Manage Fold­ers.
5. Scroll to each folder you want to sync and choose Sync on the menu. Or you can turn off Sync.
6. Choose Done
7. Choose Menu->Send/Receive. It can take a while to process all sync changes in the sub-folders
8. Now in your phone's mail you can choose Menu->Folders to switch between them.