How can I reduce my unsubscribe rate?
Primary reason could be that you are not sending the right information to your audience. For example, you may be sending discount coupons or other offers to subscribers who already purchased your product, but they might actually be interested in receiving “how-to” newsletters or product upgrade information. The other reason may be, sending your newsletter more frequently. If you are emailing more than once every 10-15 days, you can think of reducing your frequency depending on your business needs.