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SendGrid (mail send)
Send one email per submission through SendGrid’s mail/send v3 API. This integration is for transactional mail (thank-you notes, alerts)-it does not add contacts to SendGrid Marketing Campaigns; use SendGrid’s marketing tools separately if you need lists.
What you need
- SendGrid account with Sender Authentication completed.
- An API key with Mail Send permission (prefer a restricted key).
What Formspring does
Formspring posts JSON directly to https://api.sendgrid.com/v3/mail/send. You configure API key, From email, optional From display name, Subject (with {form_name}, {form_id}, {submission_id} tokens), and the submission field that holds the recipient address. The body is text/plain listing scalar fields.
SendGrid often responds with 202 Accepted; final delivery events appear in SendGrid’s own activity and event webhooks.
Steps
- In SendGrid, authenticate your sender and create a Mail Send API key.
- In Formspring, open your form → Integrations → SendGrid → fill the fields → Save.
- Submit a test; check SendGrid activity and Formspring Deliveries.
Tips
- This path is not a substitute for SendGrid Marketing list APIs.
- For HTML layouts, use SendGrid dynamic templates or extend your own service behind a generic webhook.