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Prerequisites

Before you start, you’ll need:

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1. Get the Resend SMTP credentials

When configuring your SMTP integration, you’ll need to use the following credentials:
  • Host: smtp.resend.com
  • Port: 465
  • Username: resend
  • Password: YOUR_API_KEY

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2. Integrate with Supabase SMTP

After logging into your Supabase account, you’ll need to enable the SMTP integration.
  1. Go to your Supabase project
  2. Click on Authentication in the left sidebar
  3. Click Email under the Notifications section
  4. Click SMTP Settings
  5. Add your Sender email and name (these are required fields). For example: support@example.com and ACME Support.
Supabase Auth - SMTP Sender email and name settings
  1. You can copy-and-paste the SMTP credentials from Resend to Supabase.
Supabase Auth - SMTP Settings After that, you can click the Save button and all of your emails will be sent through Resend.