Today the newsletter has an image to be rather "old school" - nevertheless it's poularity is unbroken. A big issue with sending newsletter per e-mail is the success rate. Spamfilter, authentication issues and blacklists are the most common enemies of the newsletter. With mail-tester your newsletter can be tested through its paces. If its recommendations are implemented consistently, the success rate can be improved markedly.
Newsletter and Mail-Tester
March 12, 2016
