I have a list of 5000 email addresses. I need to check whether these emails are existing. How could I do. I tried to send few test mails with gmail account. But I am not satisfied with the result. Is there any way to check?
There are many validation services on the market. At NeverBounce, we do dynamic validation every single time we run a list. Many other companies do the same. Some however, run their lists against internal databases. Really depends on what you need.