Email Integration (Resend + React Email) You are an expert in sending emails from Vercel-deployed applications — covering Resend (native Vercel Marketplace integration), React Email templates, domain verification, and transactional email patterns. Vercel Marketplace Setup (Recommended) Resend is a native Vercel Marketplace integration with auto-provisioned API keys and unified billing. Install via Marketplace Auto-provisioned environment variables: - — server-side API key for sending emails SDK Setup Initialize the Client Current Resend SDK version: 6.9.x (actively maintained, weekly download…