You can send your newsletter to all or multiple lists at a time but make sure that you are not sending duplicate copies to contacts who have subscribed for multiple lists. While selecting contact list, simply hold the CTRL key and select the lists which you intended to send.
Want to have a trail run for your campaign? Do you want to test the quality of the service we offer? One of our customer advisers will call you to discuss about your requirement and set up a free trail account for you.