Resend

Send one email per submission through Resend’s HTTP API-ideal if your team already uses Resend for product mail and wants the same stack for form-driven messages.

What you need

• A Resend account, API key, and verified sending domain.
• A From string such as Acme <hello@yourdomain.com>.

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What Formspring does

Formspring calls https://api.resend.com/emails directly. You set the API key, From line, subject template (with {form_name}, {form_id}, {submission_id} tokens), and which form field contains the recipient email. The message is plain text summarizing scalar answers.

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Steps

1. In Resend, verify your domain and create an API key.
2. In Formspring, open your form → Integrations → Resend → paste values → Save.
3. Submit a test; check spam folders once, then review Deliveries.

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Tips

• Keep API keys scoped to sending only.
• For React Email templates or attachments, use Resend’s dashboard features or another automation layer.

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More help

• Resend API reference