Checking the recipient count when sending allows you to get an accurate picture of your recipients.
To do so, open a new email window and select the ContactMonkey icon. Configure your send as per usual, putting the contacts into your CSV or your "To" Field. From there, select "Count Recipients".
Once you have clicked it, you will notice a recipient count for those in your "To" Field. Clicking in the hyperlinked amount will open a new window that breaks down the email addresses.
Group Not Looking How It Should?
If your recipient count is not accurate while using a Distribution List, you may need to change the expansion method used. For more information, see: List Expansion: EWS vs Graph Utility Account, Improving Recipient Count Accuracy.