MailVeri

Melissa’s Web APIs provide a comprehensive solution for global data verification, cleansing, and enrichment to maintain reliable data. Verify, standardize and cleanse global identities, addresses, phones & emails, powered by AI-driven reference data. Our flexible APIs are designed for modern interfaces, including REST, JSON, and XML are easily accessible through our Developer Portal, where you can build, test, and explore integrations. Enhance your data with geographic, demographic, and firmographic insights, along with U.S. property data for advanced enrichment. Melissa supports seamless integration with popular platforms such as Salesforce, Shopify, and more, making data management and governance simple and efficient. Whether you’re focused on data management, data validation, or leveraging our APIs into your website or mobile applications, Melissa helps you unlock the full potential of your data. Get started with 1,000 complimentary credits! All you need is a Melissa account

Bulk Email Checker has verified more than 12 billion addresses since 2012 for over 400,000 customers. Real-time SMTP verification delivers 99.7% accuracy by handshaking directly with mail servers rather than querying cached databases. Upload a CSV or TXT file to clean an existing list, or call the REST API to validate addresses at signup and checkout. Every result includes disposable detection, role account flags, catch-all handling, spam trap identification, domain typo correction, and MX server intelligence returning IP, hostname, location, ISP, and ASN. Pricing is pay-as-you-go from $2.95 per 1,000 verifications down to $0.000132 per address at 25 million. No monthly fees, no contracts, and credits never expire. Duplicates and unknown results consume nothing. High-volume users can switch to the Unlimited API for flat thread-based pricing from $250 per month with no per-email cost.