e2a
The facts below are what the maker publishes about e2a, checked and dated. Our editors have not written about it yet.
Plans and prices
From e2a's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Inbox add-on | $2 a month | +1 inbox · +3,000 sends/month · removes Free daily send cap |
| Starter | $10 a month | 10 agents · 5 custom domains · 20,000 sends/month · 5 GiB storage · SPF/DKIM verification · approval workflow · webhook and WebSocket delivery · email support |
| Pro | $20 a month | 25 agents · 10 custom domains · 50,000 sends/month · 10 GiB storage · approval workflow · webhook and WebSocket delivery · email support |
| Scale | $99 a month | 250 agents · 150 custom domains · 200,000 sends/month · 100 GiB storage · Pro features · priority support |
| Free | — | 3 agents · 3 custom domains · 3,000 sends/month · 20 sends/day · 1 GiB storage · SPF/DKIM verification · WebSocket delivery · e2a footer |
The facts
Each one read from e2a's own pages, with the date it was checked.
What it does
- Agent inboxes
- Agents can have dedicated two-way email addresses on the shared agents.e2a.dev domain or a verified custom domain.checked 8 Oct 2026
- Delivery options
- Inbound mail can reach agents through MCP, signed webhooks, WebSocket, REST polling, or the TypeScript and Python SDKs.checked 8 Oct 2026
- Email authentication
- e2a evaluates SPF, DKIM, and DMARC on inbound messages and provides the results as structured evidence.checked 8 Oct 2026
- Integrations
- The maker documents MCP access and TypeScript and Python SDKs, and says outbound mail can use Amazon SES or Resend as an upstream relay.checked 8 Oct 2026
- Pricing limits
- Only outbound mail counts toward allowances, each recipient counts as one send, and inbound mail is free and unmetered.checked 8 Oct 2026
- Privacy
- The privacy page says e2a stores message headers, bodies, and attachments and does not train models on mail.checked 8 Oct 2026
- Product
- e2a is an open-source email API for applications and AI agents, available as hosted service or self-hosted Apache-2.0 software.checked 8 Oct 2026
- Security screening
- Optional inbound screening can flag prompt-injection payloads and route messages to allow, review, or block.checked 8 Oct 2026
- Self-hosting
- The maker says e2a can be self-hosted with a customer-managed Postgres database and outbound mail relay at no license cost.checked 8 Oct 2026
- Shared-domain sending
- Sending to other recipients from the shared e2a domain requires a one-time approval request; paid tiers do not waive this review.checked 8 Oct 2026
- Supported MCP clients
- The MCP page says e2a is tested with Claude Code, OpenAI Codex, Cursor, Windsurf, Claude Desktop, and VS Code with GitHub Copilot.checked 8 Oct 2026
- Transactional email
- Applications can send transactional email through the HTTP API or TypeScript and Python SDKs without an agent framework.checked 8 Oct 2026
- Use cases
- The maker describes support, receptionist, scheduling, e-commerce, sales, recruiting, voice follow-up, and procurement workflows.checked 8 Oct 2026
Where it runs
- Human approval
- An optional per-agent approval gate can hold outbound messages for review, with configurable expiry behavior.checked 8 Oct 2026
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