indrajit guha

B2B catch-all domains are where other verifiers give up and mark every address risky. This one resolves the actual mailbox: real addresses return valid, fake ones invalid. Also checks RFC syntax, DNS, MX and SMTP, and flags disposable and role inboxes. $0.30 per 1,000.

B2B catch-all domains are where other verifiers give up and mark every address risky. This one resolves the actual mailbox: real addresses return valid, fake ones invalid. Also checks RFC syntax, DNS, MX and SMTP, and flags disposable and role inboxes. $0.30 per 1,000.

Free bulk email verifier and validator: up to 50 addresses per run, no charge. Checks RFC syntax, DNS, MX records and SMTP handshake, with disposable, role-based and catch-all verification. For unlimited lists, the full version runs at $0.30 per 1,000.

MCP server that lets AI agents verify email addresses. Syntax, DNS, MX ,SMTP checks and validate Catch All emails with disposable and role-based detection, no mail sent. Works in Claude, Cursor, Chatgpt and any MCP client. $0.30 per 1,000.