Out of the box, FlareMail can send through Cloudflare, but Cloudflare only delivers to addresses that are verified Email Routing destinations. To email anyone, connect Resend — when a Resend API key is present, the Worker uses it automatically and falls back to Cloudflare if needed.

Set it up

Create a Resend accountSign up at resend.com.
Verify your sending domainAdd your domain in Resend and create the DNS records it gives you. The domain must match the one you send from (e.g. verify yourdomain.com to send from [email protected]).
Create an API keyGenerate a Resend API key for the verified domain.
Store it on the WorkerSave the key as a Worker secret. It takes effect live, with no redeploy:

wrangler secret put RESEND_API_KEY

Once the key is set, compose and send as normal — your messages now leave through Resend and reach any recipient.

Set it up

Keep going