Formester email verification with ValidReach
No-code form builder with email verification/autoresponders and lead capture workflows. Connect Formester to ValidReach via REST API webhooks, workflow automation (n8n, Make, Zapier), or CSV/XLSX batch exports to verify email addresses before sending or syncing.
How it works with Formester
Connect via HTTPS webhooks, automation runners (n8n, Make, Zapier), or CSV/XLSX batch exports.
- 1
Receive the form submission from Formester on your backend or automation webhook before triggering downstream emails.
- 2
Call POST https://validreach.dev/api/v1/verify/single with your server-side API key.
- 3
Reject invalid and disposable addresses at submission time or tag the lead record before CRM sync.
- 4
Allow unknown results to proceed to confirmation so temporary mail-server timeouts never drop real leads.
When to use ValidReach with Formester
Three common patterns teams deploy to stop hard bounces and protect domain reputation.
Stop fake & disposable Formester submissions
Detect throwaway email providers and syntax typos as soon as a visitor submits a Formester form.
Protect downstream ESP autoresponders
Verify Formester respondent addresses before sending instant confirmation or lead-magnet emails through your ESP.
Tag lead quality for sales routing
Pass free-email, role-account, and deliverability flags from Formester into your CRM so reps prioritise corporate domains.
Mapping ValidReach fields into Formester
Call POST /api/v1/verify/single from your webhook or workflow runner and route contacts based on the returned status.
POST https://validreach.dev/api/v1/verify/single
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
{
"email": "contact@example.com"
}validreach_status | Recommended Formester Action |
|---|---|
| valid | Allow into active Formester campaigns & flows |
| catchall / role | Tag for low-volume sending or manual review |
| unknown | 0 credits billed; retry later or require opt-in click |
| invalid / disposable | Suppress or reject before Formester send |
Need multi-step templates? Browse verification workflows or read the integration guides.
Formester email verification questions
- Does ValidReach require a native plugin inside Formester?
- No. ValidReach connects to Formester through standard HTTPS webhooks, our REST API (POST /api/v1/verify/single and /api/v1/verify/file), or automation runners such as n8n, Make, and Zapier—so you can inspect and control every field mapped into Formester.
- How should I handle catch-all or unknown results in Formester?
- Route confirmed valid addresses directly into active Formester flows, suppress invalid and disposable addresses immediately, and tag catchall or unknown records for low-volume sending or a later retry. ValidReach never charges credits for unknown results.
- Can I verify an existing Formester export without losing custom columns?
- Yes. Upload your Formester CSV or .xlsx export to /dashboard/lists or POST /api/v1/verify/file, then download results with include_original=true to keep every original Formester column alongside the verification status and reason code.
- What is the fastest way to automate Formester verification?
- Download the workflow definition JSON on this page or connect Formester's webhook trigger to POST https://validreach.dev/api/v1/verify/single via n8n, Make, or Zapier.
Related forms, surveys & lead capture integrations
Explore other platforms in the same category or return to the full integrations directory.
Connect ValidReach to Formester
Start with 100 free credits, call the REST API or workflow node, and keep every list clean.