The email verification tool built for scale with real-time SMTP checks and 99.9% accuracy
Stage
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Founded
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Based in
US
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Pricing model
Freemium
Freemium
Pricing
Free: 3,000 emails/month. Starter: $5/month for 15,000 emails. Growth: $19/month for 50,000 emails. Scale: $99/month for 300,000 emails. Overage: $0.50 per 1,000 emails, up to a spend limit ($50 by default).
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Key features
Send email with one API call
Replies threaded to original email
Signed and retried webhooks
Versioned email templates
Send from your own domain with DKIM and SPF
Email delivery tracking
Campaign sending
Mailboxes for agents
MCP and CLI support
AI email editor
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
What makes it different
Customer replies automatically threaded and delivered to your app
Samva
BillionVerify