DeBounce

ZeroBounce is an email verification, scoring and deliverability platform helping businesses improve their inbox placement. The service detects email typos, nonexistent and abusive email accounts, spam traps and other risky email addresses. ZeroBounce also provides an email scoring service and a suite of deliverability tools to further enhance email inbox placement. The company operates a military-grade security infrastructure, ensuring customer data is protected at the highest levels. With more than 23 billion emails validated to date, ZeroBounce serves 400,000+ businesses in 190+ countries and adds up to 200 new clients every day. Companies using email lists validated by ZeroBounce report a 99%+ accuracy rate and maintain a good sending reputation. In 2019, ZeroBounce took no. 851 on the Inc. 5000 list of the fastest-growing private companies in the United States. In 2020, ZeroBounce rose to no. 40 on the list. In 2021, ZeroBounce was number 9 on the Inc. 5000 Regionals list.

Email-Validation.org is a web-based email verification service for businesses, marketers, and developers. It checks individual addresses through a REST API and accepts bulk lists through its dashboard and API, returning statuses and reasons to help users identify valid, invalid, risky, or unresolved addresses before using a mailing list. The service includes a credit-based usage model, webhooks, a JavaScript/TypeScript SDK, and a remote Model Context Protocol server for compatible AI clients. Users can validate addresses, submit bulk jobs, inspect results, and manage credits. Credits are purchased in one-time packs rather than a standard subscription; each credit covers one address, unresolved results are free, and purchased credits remain valid for 24 months. New accounts can receive up to 500 free credits, subject to signup eligibility. The service is intended for business email-list hygiene and application workflows.