| What it does | The email verification tool built for scale with real-time SMTP checks and 99.9% accuracy
| A hosted testing SMTP inbox that captures emails without delivering them
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| BD
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Free: 2,500 emails/month, 7-day retention, 5 team members, 1,000 API requests/day, 1 webhook. Pro: $15/month (or $144/year, $12/month billed yearly), 50,000 emails/month, 30-day retention, 15 team members, 30 requests/second, 10 webhooks. Team: $49/month (or $468/year, $39/month billed yearly), 250,
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| 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
| - Capture-only SMTP server on ports 587, 465 and 2525
- HTML, text, raw source, and full headers inspection
- REST API with wait-for-email endpoint for CI
- MCP server for AI coding agents (Claude, Cursor)
- Webhooks for notifications
- Team roles and email invites
- Chaos testing for SMTP failure scenarios
- Separate inboxes per project with unique SMTP credentials
- Desktop, tablet and mobile preview widths
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| What makes it different | - 99.9% accuracy through multi-layer verification (syntax, domain, MX, SMTP, risk signals)
- Lowest pricing: $0.001 per email on entry plans, down to $0.00014 on annual plans
- You only pay for definite results; unknown results and invalid syntax addresses are free
- Credits never expire whether purchased or earned through daily free allowance
- Works across multiple interfaces: dashboard, API, MCP server, and AI agent skills
| - Messages are never delivered to real customers
- Works with any mailer or framework that sends SMTP
- Compatible with SendGrid, Mailgun, Postmark and Resend SDKs
- AI agents can test emails over MCP
- Customer data hosted in Germany (EU)
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 60 ▲ +1 (up) since last check | 3 ▲ +3 (up) since last check |
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| Trust Flow (Majestic) | 10 | 0 |
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| Citation Flow (Majestic) | 25 | 0 |
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| Referring domains (Majestic) | 347 | 0 |
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BillionVerify
MailBench