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On the recordRead 8 Oct 202614 facts
e2a
Plans and prices
Inbox add-on
$2a month
+1 inbox · +3,000 sends/month · removes Free daily send cap
Read 8 Oct 2026 · e2a.dev
Starter
$10a month
10 agents · 5 custom domains · 20,000 sends/month · 5 GiB storage
Read 8 Oct 2026 · e2a.dev
Pro
$20a month
25 agents · 10 custom domains · 50,000 sends/month · 10 GiB storage
Read 8 Oct 2026 · e2a.dev
Scale
$99a month
250 agents · 150 custom domains · 200,000 sends/month · 100 GiB storage
Read 8 Oct 2026 · e2a.dev
Free
Priced on request
3 agents · 3 custom domains · 3,000 sends/month · 20 sends/day
Read 8 Oct 2026 · e2a.dev
On the record
- Agent inboxes
- Agents can have dedicated two-way email addresses on the shared agents.e2a.dev domain or a verified custom domain.e2a.dev · read 8 Oct 2026
- Delivery options
- Inbound mail can reach agents through MCP, signed webhooks, WebSocket, REST polling, or the TypeScript and Python SDKs.e2a.dev · read 8 Oct 2026
- Email authentication
- e2a evaluates SPF, DKIM, and DMARC on inbound messages and provides the results as structured evidence.e2a.dev · read 8 Oct 2026
- Human approval
- An optional per-agent approval gate can hold outbound messages for review, with configurable expiry behavior.e2a.dev · read 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.e2a.dev · read 8 Oct 2026
- Pricing limits
- Only outbound mail counts toward allowances, each recipient counts as one send, and inbound mail is free and unmetered.e2a.dev · read 8 Oct 2026
- Privacy
- The privacy page says e2a stores message headers, bodies, and attachments and does not train models on mail.e2a.dev · read 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.e2a.dev · read 8 Oct 2026
- Security screening
- Optional inbound screening can flag prompt-injection payloads and route messages to allow, review, or block.e2a.dev · read 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.e2a.dev · read 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.e2a.dev · read 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.e2a.dev · read 8 Oct 2026
- Transactional email
- Applications can send transactional email through the HTTP API or TypeScript and Python SDKs without an agent framework.e2a.dev · read 8 Oct 2026
- Use cases
- The maker describes support, receptionist, scheduling, e-commerce, sales, recruiting, voice follow-up, and procurement workflows.e2a.dev · read 8 Oct 2026
