Resend (channel provider)

Note

Resend is an outbound channel provider — the delivery rail the platform sends email through — not an agent connector. Agents read sent/received email via the Email Inbox connector.

Resend handles all transactional and outreach email on the platform. The CRO uses it for personalized prospect outreach (with the 48-hour contact-spacing gate); the CFO uses it for invoice reminders (with the 72-hour cooldown and FDCPA Regulation F gate); the CMO uses it for campaign sends; the COO uses it for vendor and hiring communications.

Resend was selected over Cloudflare Email Service (which remains in private beta as of 2026) and over SendGrid/Mailgun because of its lightweight HTTP API, free tier suitable for early tenants, and auto-configured SPF/DKIM/DMARC on custom domains.

Configuration

You connect a sending domain on the Resend dashboard, verify SPF/DKIM/DMARC records, then drop the API key into the platform’s secrets vault. Per-tenant sending domains are isolated. Detailed setup walkthrough lands in a future docs phase.