The issue you are having has been fixed in a later M2 release of Correspondence Management. Where did you get your copy of the M2 CM kit from? If your source does not have a newer version I can look into getting one for you.
A number of fixes have been made to the original M2 release of Correspondence Management that came out at the beginning of July. I have been told that the link you provided above is due to be updated on Monday with the latest version.