The email verification tool built for scale with real-time SMTP checks and 99.9% accuracy
Multiple email accounts in one Windows desktop app
Stage
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Founded
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Pricing model
Freemium
Freemium
Pricing
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$4/month (billed annually as $48/year) or $299 one-time for lifetime access. Both plans include unlimited email accounts and up to 5 computer activations.
Key features
Live SMTP mailbox verification checking if a mailbox exists and accepts mail
Bulk file upload and processing for CSV and XLSX lists
REST API with batch requests supporting up to 50 addresses per call
Risk flagging for disposable, role, and catch-all addresses
MCP server integration for AI agents like Claude and Cursor
Email finder turning a name and company domain into verified work address
White-label service with custom domain and client workspaces
Free email tools including SPF, DKIM, DMARC checkers and DNS lookups
Unlimited email accounts
Support for Gmail, Microsoft, Yahoo, Zoho and custom webmail
BillionVerify