Interseller periodically checks multiple spam lists to ensure that your emails get delivered properly. We email the results to you along with your weekly email report. This way, you can get a continuous monitoring report of your email sending reputation. As a subscriber, our staff is automatically notified whenever your domain is listed and will work with you to get your email delisted from spam lists.
What is a spam list/blacklist?
An email spam list is a database of email addresses that are known to send spam. These blacklists obtain data from user inboxes when they are marked by a recipient user as spam or if you email a spam trap. For more information, check out SendGrid's article about email blacklists.