Some emails get saved because they offer something the reader finds useful, important, or inspiring. For instance, a message with helpful tips, discount codes, or special announcements is more likely to be kept for later. On the other hand, emails that look too promotional or don't offer value are often deleted right away. The design also matters—emails that are easy to read and well-organized tend to stand out more. When readers find the content worth returning to, they keep it in their inbox. What kind of emails do you think people usually save instead of deleting?