Will contacts who are in 2 or more groups receive multiple emails?

You can send your email campaign to multiple groups. You can select all the groups that you would like to send to in the Audience screen in NewZapp.

If sending a campaign out to a contact  which is included in more than one group. That person will receive only one copy of the email.

For example contact@email.co.uk is in your groups called "Group A", "Group B" and "Group C". If you select all these groups for your email campaign and even though contact@email.co.uk is included in all of the groups, only one email will be sent to that subscriber, instead of three.

NewZapp also automatically filters out unsubscribes from the lists.