Nokia 500 - I had a Nokia Messaging mailbox on my Symbian ^3 device, but after creating a new mailbox it is now using the direct connect mailbox. Why?

New Nokia Messaging 2.x mailboxes (for Symbian ^3 devices) that are used for new mailbox setup are now limited to specific countries or operators. Existing mailboxes created using Nokia Messaging 2.x will continue to work on the device, but any newly created mailboxes will follow the configuration that controls what countries or operators are allowed to continue with Nokia Messaging 2.x.