You are able to set a total of 4 email addresses to CC when sending emails from Kennel Connection.
Click on File, Business Info, Email tab.
Click here for directions on setting up emails in KC.
The first email address is on the Business Information tab.

The other three emails addresses are set on the Email tab, Main tab.
You can also check the "CC box is checked automatically for all email functions" so you don't have to remember to check the box each time.
