Mailcheck.co

Mailcheck is an email verification service that helps businesses keep marketing lists clean, reduce bounce rates, and improve email campaign deliverability. Users can check addresses online in bulk or connect through an API for real-time validation. The service evaluates whether an email exists and provides checks such as SMTP status, disposable-address detection, catch-all detection, and a trust rate. Mailcheck also says it uses public sources, search systems, social networks, and open databases to support its verification process.

The platform is designed for marketers and businesses seeking to improve conversions and avoid wasting time and money on invalid or outdated contacts. Its features include duplicate detection, list validation, and tools to support outbound marketing. Mailcheck offers recurring plans at several levels, from a Pro plan with 1,000 checks included to larger agency and enterprise options, as well as custom plans. Users can also request a demo, consult its knowledge base and tutorials, and contact customer support. The company offers a free allowance of 10 or 100 validations, depending on billing verification.