One of the most important aspects of a successful email newsletter is having a content strategy. Too often newsletters are filled with filler articles, which defeats the purpose of having one in the first place.
A good rule of thumb is to have no more than 1-2 articles per issue. The more articles, the more difficult it becomes to keep readers engaged.
Additionally, it’s important to consider who your audience is and what they’re interested in. If your newsletter is geared towards business owners, then you may want to feature articles about business strategies.
If your audience is made up primarily of consumers, then you may want to focus on highlighting new product releases or trends in the industry.
A conclusion would be that a newsletter should have a content strategy and be limited to 1-2 articles per issue in order to keep readers engaged and informed.