Those 6 cnm files are raw new message files and obviously one has a serious problem. You do not *need* them but you may *want* 5 of them since they are new mail messages that you may or may not have already read depending on what happens to read mail on closure. Try moving the cnm files back in one at at time starting with the oldest date/time stamp one first. It is most likely the latest date/time stamp one will be the problem message. You can open that file in Notepad just to see who the message was from and what the subject was at the least.
Those 6 cnm files are raw new message files and obviously one has a serious problem. You do not *need* them but you may *want* 5 of them since they are new mail messages that you may or may not have already read depending on what happens to read mail on closure. Try moving the cnm files back in one at at time starting with the oldest date/time stamp one first. It is most likely the latest date/time stamp one will be the problem message. You can open that file in Notepad just to see who the message was from and what the subject was at the least.