Skip to main content
Pro - both saving an enabled autoresponder config and sending an autoresponse are Pro-gated.
Formpaste can send a confirmation email back to the person who submitted your form — “thanks, we got your message” - without you writing any backend code.

​
Enabling it

  1. Open a form in the dashboard → Settings → Autoresponder.
  2. Turn it on and fill in the fields below.
  3. Save.

​
Config fields

The reply is sent to the address in the submission’s mapped reply-to field (reply_to_field, configured under notifications) - that’s how Formpaste knows who submitted the form.

​
Guardrails

An autoresponse is sent only when every condition holds:
  • The form has autoresponder_enabled on.
  • The account is on a plan that allows the autoresponder feature (Pro).
  • The submission’s reply-to field is a valid, well-formed email address.
  • The same recipient hasn’t already received an autoresponse from this form in the last 24 hours - this dedup window prevents a form being used to mail-bomb an address via repeated submissions. A recipient is tracked by a hashed value, never stored as plaintext.
If any guardrail fails, the autoresponse is silently skipped - the visitor’s own submission is never blocked or delayed by this.

​
Free vs. Pro

Free cannot enable an autoresponder. Both saving autoresponder_enabled: true and the send-time check resolve through the same plan gate, so a form that was Pro when configured and later downgrades to Free stops auto-replying (the config is preserved but inert).

​
Zero-config

Off by default. A new form never auto-replies until you explicitly enable and save it.