| What it does | Email API and SMTP relay with MCP server for AI assistants
| Email infrastructure for AI agents
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| Stage | Not given
| Startup
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
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| Pricing | Not given
| Free: 3,000 emails + 3,000 inbound replies/month; Pro: $20/month for 50K emails + 50K inbound replies; Scale: $99/month for 250K emails + 500K inbound replies. Yearly billing available: Pro $200/year, Scale $990/year (two months free).
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| Key features | - HTTP API for sending email
- SMTP relay on port 587 with STARTTLS
- Batch sending up to 100 messages per request
- Signed webhooks for delivery, bounce, complaint, open and click events
- Automatic bounce and complaint suppression
- DKIM, SPF and DMARC domain authentication with Domain Connect
- Newsletters and broadcasts with one-click unsubscribe
- Sandbox test addresses and idempotency keys
- Remote MCP server for Claude, ChatGPT and Cursor
- Local MCP server with npx for file attachments and inline images
| - Per-agent email addresses on your domain
- Native prompt-injection scanning on every inbound
- Per-agent reputation graph
- Typed reply events without raw MIME parsing
- MCP-native distribution
- Self-serve signup with no sales call
- TypeScript and Python SDKs
- HMAC-signed webhooks with retries
- Per-agent allowlist and send limits
- DKIM signing on custom domains
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| What makes it different | - Transactional and marketing email in one account, no need for separate services
- MCP server integration allows AI assistants like Claude, ChatGPT and Cursor to send and manage email directly
- Free plan with 5,000 emails per month, no credit card required
- Local MCP server runs on your computer for secure file attachment without server access to local files
- No overage charges by default; hard stop at quota with optional paid extra emails
| - No approval queue—sending works immediately on signup
- Prompt-injection scanning built into every inbound message
- Per-agent reputation tracking so each agent is scored independently
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 29 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 8 |
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| Citation Flow (Majestic) | 0 | 36 |
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| Referring domains (Majestic) | 0 | 406 |
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Sendscape
Mails.ai