App MVP — Domains, Messages, Webhooks

## MVP Launch Ten days after the first commit, we shipped a working product. ### Core Features - **Custom email domains** — Businesses can connect their own domains for agent inboxes - **Message threading** — Full conversation history with proper thread management - **File attachments** — Support for PDFs, images, and documents in email threads - **Webhook APIs** — Real-time event notifications for integrations - **Node.js SDK** — `@customagents/sdk` for programmatic access - **Landing page** — First public-facing website ### Infrastructure - Domain verification via DNS (CNAME + MX records) - AWS SES for email send/receive - Rate limiting and daily message caps - API documentation with examples This was the version that proved the concept worked.