Options reference
Find the main public request and published-form settings.
Public request fields
| HTML | JSON | Role |
|---|---|---|
| _fq_key | form_key | Public form key |
| Named fields | fields | Visitor values |
| _fq_id | client_submission_id / Idempotency-Key | Stable attempt identifier |
| _subject | subject | Optional subject, when overrides are permitted |
| _fq_uploads | attachments | Authorized file identifiers |
| _fq_session | session_token | Upload session |
| _fq_captcha | captcha.token | Configured CAPTCHA token |
Published form settings
Fields, required rules, confirmation, redirects, origin policy, spam controls, recipients, and connections take effect through a published version.
| Option | Use |
|---|---|
| allowedOrigins | Allowed origins for your website and redirects |
| recipients / cc | Verified recipients and copies |
| subject / fromName / replyField | Notification customization |
| successRedirect / thankYou | Response after intake |
| spam / rules | Checks and processing |
| retentionDays | Message retention |
| connectionIds | Enabled private connections |
Change settings at the correct boundary
Edit labels and CSS in the page, edit validation and workflow in the form configuration, and keep provider secrets in private server settings.
Documentation reviewed on October 20, 2026Suggest an improvement →