Indie Dev Email Marketing Complete Guide — Automate with Resend × Supabase

Email drives higher conversions than social media. Here's how indie developers can automate email marketing using Resend and Supabase.

Why Email Matters

Channel Avg Open Rate Click Rate Conversion Rate

Email 21-28% 2-5% 2-4%

Twitter/X 0.5-1% 0.1-0.3% 0.1-0.5%

Push Notifications 4-8% 0.5-1% 0.5-1%

Unlike social media, your email list is an asset you own — algorithm changes can't take it away.

Sending Email with Resend

// Supabase Edge Function: send-email import { Resend } from ' npm:resend ' ;

const resend = new Resend ( Deno . env . get ( ' RESEND_API_KEY ' ) ! );

Deno . serve ( async ( req ) => { const { to , subject , html } = await req . json ();

const { data , error } = await resend . emails . send ({ from : ' Jibun AI <[email protected]> ' , to , subject , html , });

if ( error ) return Response . json ({ error }, { status : 400 }); return Response . json ({ id : data ?.…