Connect Resend to Cloudflare

I need help connecting Resend.com to Cloudflare.com for my website, lovable-dev.com. This integration is necessary for sending newsletters and updates.

Requirements:
- Add Resend DNS records in Cloudflare
- Set up Resend API key on my website

Ideal Skills and Experience:
- Experience with DNS and API integration
- Familiarity with Cloudflare and Resend
- Knowledge of custom-built websites

Please ensure the setup is tested and working correctly. Looking forward to your proposals!