Join our whitelist, and watch as your inbox placement and response rates go through the roof.

Join our network of trust and gain access to the largest, broadest and most respected whitelist in the email universe, covering more than two billion mailboxes worldwide. Return Path’s exclusive Certification program is available only through Certification.EQ, part of our Email Intelligence Solutions for Marketers.

Senders, receivers and consumers all want permission-based email to reach the inbox. But because mailbox providers and filtering companies must protect consumer inboxes from spam, they sometimes inadvertently block good email. To address this, most mailbox providers rely on whitelists to help separate responsible senders from spammers. If you appear on a whitelist that's used by your most important mailbox providers, your chances of making it to the inbox dramatically increase. With Return Path Certification, your company can experience up to 40% uplift over your current inbox placement rates. And with good inbox placement comes higher response rates.