Getting started

SNDR is an email infrastructure platform. This guide will walk you through creating an account, verifying your domain, and sending your first email.

1. Create an account

Sign up at app.sndr.sh/register. The free tier includes 3,000 emails per month — no credit card required.

2. Verify a domain

Add the sending domain you control. We’ll generate the SPF, DKIM, and DMARC records you need to add to your DNS provider.

3. Generate an API key

Head to /api-keys in the dashboard and click "Create key". Copy it now — you won’t see it again.

4. Send your first email

curl -X POST 'https://api.sndr.sh/v1/send' \
  -H 'Authorization: Bearer sndr_live_x9k2...' \
  -H 'Content-Type: application/json' \
  -d '{
    "from": "hello@yourdomain.com",
    "to": ["customer@example.com"],
    "subject": "Hello, world",
    "html": "<p>You did it.</p>"
  }'