NeverBounce

NeverBounce uses a proprietary 20+ step cleaning process to verify emails up to 75 times across multiple global servers for unmatched accuracy. The platform offers bulk email verification, real-time API, and Sync for automated list cleaning connected to HubSpot, Mailchimp, and ActiveCampaign. Features include syntax checking, domain verification, SMTP verification, toxic email detection, and integration with 80+ platforms. Founded in 2013 and backed by ZoomInfo.