Include an unsubscribe link in your messages!
CCtoMany does not force the use of an unsubscribe link, but we STRONGLY recommend that you include one. It serves the additional function of allowing readers to change their subscribed address without contacting you. Click the main Help link for detailed instructions about inserting the CHANGE/REMOVE address (a.k.a. unsubscribe) link. Also see more info here.
Likewise, there is an optional open-rate image which you can insert, so you can see who has opened your messages. That image is included in our default template, but if you create your own message template or submit via email, you will need to include that image yourself. See this page for details.