You may not think much about your email messages' bounce rates, however they could well in reality establish the number of people discover your emails. Internet regulators (such as ISPs and anti-spam groups) set limitations for bounces, spam complaints and unsubscribe requests. In case you provide campaigns to inactive users and rise above these kinds of benchmarks, you will definitely turn up lower in inboxes and can even have your account interrupted by your ESP to get email verification service
Guard your emailer reputation score
All companies that send email strategies are elected a sender reputation score. IT IS a bit like a credit score. If you send a lot of bounced or unwanted emails, this will leave a negative mark on your sender history. Also, just like credit history, once your reputation drops, it can be tricky to build it up again.
Save money and feel better campaign results
Verifying your list means that you'll no longer send to dead email addresses. With these removed, your open and click-through rates are going to give you more understanding into your users' actual interests. Plus, having fewer customers on your list will help you save money and improve ROI.