Although e-mail is one of the most popular components of users’ experiences of the Internet, its use by political actors in campaigns has rarely been studied. In this article, I explore political actors’ responsiveness to e-mails coming from citizens through a large-scale, longitudinal study of 194 parties and candidates in Australia, France, Germany, Italy, Spain, the United Kingdom, and the United States between 2007 and 2013. In order to assess political actors’ e-mail responsiveness, two fictitious e-mails were sent to each of them: one requesting issue information, the other pledging to be willing to volunteer. Results show that most parties and candidates fail to respond to both types of e-mails, and that progressive parties tend to respond more than conservative ones.