Offer information of interest to Company email list newsletter subscribers : the main objective of a newsletter should be to offer information that will provide some type of benefit to the reader. Be it informative or entertaining. The periodicity of mailings must be according to the characteristics of the company and its audience. Finding an optimal balance so as not to annoy subscribers. And at the same time. To keep their interest alive over time. Promote products or services: once periodic information is being offered. You can choose to send emails promoting certain services or products. Care must be taken not to exceed the frequency of sending this type of newsletter. As it could cause inconvenience to subscribers Company email list.