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Postmark (outbound)
Send one transactional email per submission through Postmark’s Email API-for example a thank-you to the visitor or an internal alert to your team.
What you need
- A Postmark account and Server API token (server-level, not account-level).
- A verified sender or domain for the From address you will use.
What Formspring does
Formspring calls Postmark’s /email endpoint directly over HTTPS. There is no intermediate relay. You configure:
- Server token
- From (must be verified in Postmark)
- Subject (supports tokens like
{form_name},{form_id},{submission_id}) - Recipient field – which form field holds the email address (defaults to
email) - Message stream – usually
outbound(transactional)
The email body lists scalar fields from the submission in plain text.
Steps
- In Postmark, open your server → copy the API token → verify From.
- In Formspring, open your form → Integrations → Postmark → fill the fields → Save.
- Submit a test; check the inbox and Deliveries.
Tips
- Watch Postmark sending volume against your plan.
- For HTML templates or attachments, use Postmark features outside this simple integration, or chain another tool after a generic webhook.