* Go to Recipients Editor > Open Mailing List from Repository
* Choose a mailing list that you want to clean and click Open
* Click on the “Delete Duplicate Recipients” icon
* You will notice that the listing is automatically re-arranged in alphabetical order. If you have any duplicate emails, Thunder Mailer will notify you. For example, “There are 58 duplicate emails deleted”.
* Click OK and you will have a cleaner email listing