When tracking on an Overall basis using ContactMonkey, you will notice and option to enable Count appear within your sidebar.
This option is available for users, as sending an Overall campaign to a Distribution List will usually result in 1 recipient being counted in your report:
You can edit this from your campaign page to see an accurate reflection of your analytics, but ContactMonkey can do the counting for you, if it is enabled in the sidebar as you send.
ContactMonkey recommends you to have Count switched On for all Overall campaigns. This works for Distribution Lists of up to 5k recipients. If your List has more than this, refer to this article.
Note: your sending time may increase by 1-2 minutes as ContactMonkey counts your lists before it sends.