Moving Email Messages Between Folders
You can transfer email messages or entire conversations from one folder to another.
Drag and drop the item over the desired folder in the left-hand pane
Select the items, right-click, select Move. In the Move Message box, select a destination folder, and click OK.
If you are moving a few messages within a conversation, the conversation appears in both places. The Conversation Detail View window shows the new location of the message that was moved.