Mailtrap with Supabase Edge Functions

This example shows how to use Mailtrap Email Sending API with Supabase Edge Functions.

Setup

1. Copy .env.example to .env and add your Mailtrap API key.
2. Important: Supabase Edge Functions do not use .env after deployment. You must also store your API key as a Supabase secret:

   supabase secrets set MAILTRAP_API_KEY=your_mailtrap_api_key
   

3. Make sure the from.email in index.ts belongs to a verified Sending Domain in your Mailtrap account.
4. Deploy with Supabase CLI:

   supabase functions deploy mailtrap --no-verify-jwt
   

5. Call the function:

   curl https://<your-ref>.supabase.co/functions/v1/mailtrap
   

Files

• supabase/functions/mailtrap/index.ts
• .env.example
• README.md