The purpose of a promo newsletter is to not only to advertise your products or services. Your main task is to build loyal and long-term relationships with your customers. To do this, you need to take care of them, constantly providing interesting and relevant content. For good promotion email ideas, you need to investigate your audience in depth and segment it. As a criterion for segmentation, you can choose gender, age, geodata, or even particular qualities of online behavior of your customers. The more precisely you select the audience, the more targeted your offer will be. And that means more chances to perform the target action.