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n8n Email Verification Templates

Import a template, add your API key, run your first verification. Five ready-to-use workflows for email verification and email finding inside n8n, with catch-all resolution.

n8n setup guide →

Five Templates, Ready to Import

Plus a catch-all recovery pattern you can build from the bulk template's catch-all branch.

Single Email Verification

Verify one address from any n8n trigger — form submission, CRM update, Slack command, or manual input. Returns deliverable, bounce, catch-all, or uncertain in seconds.

Use for: Signup validation, CRM enrichment triggers, manual spot checks

Download template →How verification works →

Bulk List Verification

Upload a CSV or connect a Google Sheet. The workflow submits your list as a bulk job, polls for completion, and returns cleaned results split by status — deliverables, bounces, catch-all, and uncertain in separate outputs.

Use for: Monthly list cleaning, pre-campaign verification, Apollo/Clay export processing

Download template →Bulk verification details →

Webhook Real-Time Verification

Expose an HTTP endpoint that verifies any email sent to it. Connect to your forms, landing pages, or internal tools. Returns verification result in the response — block bad emails before they enter your database.

Use for: Signup forms, lead capture pages, Zapier/Make webhook chains

Download template →API endpoint reference →

Catch-All Resolution

Takes a list of catch-all flagged addresses and resolves each one individually. Returns confirmed deliverable or bounce. Unresolvable addresses pass through unchanged at no cost.

Use for: Recovering leads from catch-all domains after initial verification, maximizing list coverage

How catch-all resolution works →

Find Email by Name

Provide a first name, last name, and company domain. The workflow finds and verifies the correct business email — including on catch-all domains where other tools just guess. 20 credits per found (25 with catch-all resolution), not found is free.

Use for: Lead enrichment, contact discovery from LinkedIn exports, CRM enrichment

Download template →How the finder works →

Bulk Email Finder (Google Sheets)

Read a list of contacts from Google Sheets, find verified business emails for each one, and write results back. Loops sequentially with rate-limit spacing. Not-found results cost nothing.

Use for: Enriching prospect lists, building outbound contact databases, Apollo/LinkedIn export enrichment

Download template →Finder details →
Bulk List Verification · n8n500 emails
01Google Sheet· 500 emails loaded
02filtrat.io Verify· Results split by status
03Route results· Each status to its own branch
04Catch-all resolution· 78 addresses resolved
364confirmed deliverable
102confirmed bounce
34unresolved + uncertain (free)
52leads recovered from catch-all

Watch a List Get Cleaned

500 emails in, sorted results out. Here's what the bulk verification template does in one run.

52 leads recovered from catch-all domains that other tools wrote off.

Built-In Safeguards

Every template includes error handling, balance checks, and result routing out of the box.

Balance check before execution

Workflow checks your remaining credits before processing. If credits are insufficient, the flow stops gracefully with a notification instead of failing mid-list.

Error handling

API timeouts, rate limits, and network errors are caught and retried automatically. No silent failures, no lost results.

Result routing

Output splits by status — deliverables go to one branch, bounces to another, catch-all to a third. Connect each branch to your CRM, spreadsheet, or sequencer.

Email Verification Automation Workflows

Weekly list cleaning

Schedule → pull contacts from HubSpot → bulk verify → push clean contacts back → archive bounces.

Lead capture gate

Webhook → new lead submits form → verify email in real time → valid = add to CRM, invalid = reject with message.

Catch-all recovery pipeline

After bulk job → filter catch-all results → resolve individually → recovered leads back to sequence → unresolved flagged.

Clay export processing

Export CSV from Clay → import to n8n → bulk verify → catch-all resolve → import clean list to Instantly or Woodpecker.

Why Use n8n for Email Verification

  • No code required — Visual workflow builder — drag, drop, connect.
  • Self-hosted or cloud — Your data stays on your infrastructure if you want it to.
  • Catch-all resolution built in — Not just "accept-all" and move on — we resolve to confirmed or bounce.
  • Pay only for results — Uncertain and cached results are free. You pay for confirmed outcomes only.
  • Balance checks — Flows never crash on empty credits — built-in checks stop gracefully.
  • 200 free credits to start — No card required. Enough to verify 200 addresses.

200 free credits.
No card.

Import a template, paste your API key, and start verifying in minutes.

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