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Email list validation and cleanup with Google Sheets and VerifiEmail

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Email list validation and cleanup with Google Sheets and VerifiEmail preview
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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Email Subscription Cleaner A fully automated workflow that cleans, validates, and restructures your subscriber list using Google Sheets and VerifiEmail. Perfect for marketers, SaaS teams, or any...

Best for

  • Lead Generation automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-verifiemail.verifiemail, n8n-nodes-base.function, n8n-nodes-base.googlesheets, n8n-nodes-base.code, n8n-nodes-base.merge, n8n-nodes-base.if, n8n-nodes-base.respondtowebhook

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Jitesh Dugar.

Original n8n.io source

1.1 Workflow description

Title
Email list validation and cleanup with Google Sheets and VerifiEmail
Workflow name
Email list validation and cleanup with Google Sheets and VerifiEmail

🧼 Email Subscription Cleaner

A fully automated workflow that cleans, validates, and restructures your subscriber list using Google Sheets and VerifiEmail. Perfect for marketers, SaaS teams, or anyone maintaining an email database.


🚀 What This Workflow Does

In one automated run, it:

  • Accepts a cleaning request via Webhook
  • Extracts list settings, preferences, and options
  • Fetches all subscribers from Google Sheets
  • Normalizes emails and formats subscriber fields
  • Performs real-time verification using VerifiEmail
  • Classifies each subscriber as: remove (invalid / disposable / role), keep (valid & safe), tag (special cases)
  • Deletes bad emails directly from the source sheet
  • Stores all valid emails in a clean, curated CleanSubscribers sheet
  • Returns a structured JSON summary to the caller

🔍 Why This Template Is Useful

  • Improves deliverability
  • Removes spam traps, bots, disposable domains
  • Cleans and reorganizes messy lists
  • Reduces bounce rates
  • Builds a healthier mailing list for campaigns
  • No CSV download/upload required — runs directly on Google Sheets

🧠 How It Works (In Simple Steps)

  1. Webhook receives batch-clean request

  2. Extract Inputs parses settings (listId, priority, options)

  3. Fetch Subscribers reads rows from Google Sheets

  4. Normalize each subscriber’s fields

  5. Validate Email quality (MX check, disposable, provider data)

  6. Merge subscriber info + validation results

  7. Classify each subscriber into keep/remove/tag

  8. Clean Up:

    • remove → deletes the row
    • keep → appends to clean list
  9. Respond with a clean JSON summary

Fast, simple, reliable — perfect for weekly or on-demand cleanup.


🔧 Setup Required

Connect 2 credentials:

  • Google Sheets (read / delete / append)
  • VerifiEmail (API key)

Update:

  • Sheet name (SubscriberList)
  • Clean list sheet (CleanSubscribers)
  • Optional tag rules in “Classify Email”

No other configuration needed.


🏁 Perfect For

  • Newsletters
  • Marketing teams
  • Event lists
  • SaaS mailing lists
  • CRM cleanup
  • Lead verification
  • Removing dead/invalid emails automatically

🏷️ Tags

email, cleanup, validation, google-sheets, verifiemail, marketing, automation, list-cleaner, webhook

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Webhook - Receive Email Batch

Type / Role
n8n-nodes-base.webhook - webhook
Config choices
Version 1

Block 2 - Verifi Email

Type / Role
n8n-nodes-verifiemail.verifiEmail - verifiEmail
Config choices
Version 1

Block 3 - Extract Inputs

Type / Role
n8n-nodes-base.function - function
Config choices
Version 1

Block 4 - Fetch Subscribers

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 5 - Normalize Subscriber

Type / Role
n8n-nodes-base.code - code
Config choices
Version 2

Block 6 - Merge

Type / Role
n8n-nodes-base.merge - merge
Config choices
Version 3.2

Block 7 - Classify Email

Type / Role
n8n-nodes-base.code - code
Config choices
Version 2

Block 8 - Should Remove?

Type / Role
n8n-nodes-base.if - if
Config choices
Version 2.2

Block 9 - Delete rows or columns from sheet

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 10 - Append Clean Emails

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.7

Block 11 - Success response

Type / Role
n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices
Version 1.4

Block 12 - Sticky Note

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 13 - Sticky Note1

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 14 - Sticky Note2

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 15 - Sticky Note3

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 16 - Sticky Note4

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 17 - Sticky Note5

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 18 - Sticky Note6

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

3. Summary Table

Workflow Email list validation and cleanup with Google Sheets and VerifiEmail
Complexity advanced
Nodes 18
Categories Lead Generation
Author Jitesh Dugar
Published 19 Nov 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/11017/11017.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Email list validation and cleanup with Google Sheets and VerifiEmail do?

Email Subscription Cleaner A fully automated workflow that cleans, validates, and restructures your subscriber list using Google Sheets and VerifiEmail. Perfect for marketers, SaaS teams, or any...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Lead Generation use case.