n8n-nodes-campaignkit

This is an n8n community node for CampaignKit Email Validation. It lets you validate email addresses and receive notifications when validation jobs complete in your n8n workflows.

n8n is a fair-code licensed workflow automation platform.

Installation

Follow the installation guide in the n8n community nodes documentation.

Community Node Installation

1. Go to Settings > Community Nodes in your n8n instance
2. Select Install
3. Enter n8n-nodes-campaignkit in the Enter npm package name field
4. Click Install

Manual Installation

If you're self-hosting n8n, you can install the node manually:

npm install n8n-nodes-campaignkit

For Docker-based installations, add the package to your n8n Docker image or install it in your running container.

Operations

CampaignKit Node

The main CampaignKit node supports the following operations:

Validate Email

Validates a single email address and returns detailed verification results.

Input:

• email (string, required): The email address to validate

Output:

{
  "email": "[email protected]",
  "is_valid": true,
  "is_risky": false,
  "is_invalid": false,
  "is_disposable": false,
  "is_role_email": false,
  "is_catchall": false,
  "is_blacklisted": false,
  "is_free_email": true,
  "is_mx_found": true,
  "is_smtp_valid": true,
  "score": 10,
  "classifier": "valid",
  "domain": "example.com",
  "mx_record": "mail.example.com",
  "smtp_provider": "Google",
  "free_email_provider": "Gmail",
  "did_you_mean": ""
}

Validate Batch

Validates multiple email addresses as a batch job.

Input:

• emails (string, required): Email addresses to validate (one per line)
• label (string, optional): Label for the validation job

Output:

{
  "job_id": 12345,
  "email_count": 100,
  "status": "pending",
  "label": "My Email List",
  "created_at": "2025-01-15T10:00:00Z"
}

Get Job Status

Retrieves the status and results of a validation job.

Input:

• jobId (number, required): The ID of the validation job

Output:

{
  "job_id": 12345,
  "account_id": 456,
  "label": "My Email List",
  "state": "done",
  "email_count": 100,
  "valid_count": 85,
  "invalid_count": 10,
  "risky_count": 5,
  "deliverable_count": 85,
  "undeliverable_count": 15,
  "credits_used": 100,
  "progress": 100,
  "created_at": "2025-01-15T10:00:00Z",
  "started_at": "2025-01-15T10:00:05Z",
  "finished_at": "2025-01-15T10:05:00Z"
}

CampaignKit Trigger

The CampaignKit Trigger node responds to events from CampaignKit.

Job Completed

Triggers when a validation job is completed.

Output:

{
  "event": "validation.job.completed",
  "job_id": 12345,
  "account_id": 456,
  "label": "My Email List",
  "state": "done",
  "email_count": 100,
  "deliverable_count": 85,
  "undeliverable_count": 15,
  "risky_count": 5,
  "credits_used": 100,
  "created_at": "2025-01-15T10:00:00Z",
  "finished_at": "2025-01-15T10:05:00Z"
}

Credentials

To use this node, you need a CampaignKit API key.

Getting Your API Key

1. Sign up for a CampaignKit account
2. Navigate to Settings > API Keys
3. Create a new API key or copy an existing one

Configuring Credentials in n8n

1. In your n8n workflow, add a CampaignKit node
2. Click on Credentials > Create New
3. Select CampaignKit API
4. Enter your API key
5. (Optional) Modify the Base URL if using a custom instance
6. Click Save

The credential will be automatically tested by making a request to /v1/account/me.

Example Workflows

Example 1: Validate Single Email

Manual Trigger → CampaignKit (Validate Email) → Filter (is_valid = true) → Send Email

1. Trigger workflow manually or via webhook
2. Use CampaignKit node with Validate Email operation
3. Filter results to only include valid emails
4. Send confirmation email for valid addresses

Example 2: Batch Validation with Notification

Schedule Trigger → HTTP Request (Get Emails) → CampaignKit (Validate Batch) → Wait → CampaignKit (Get Job Status) → Send Notification

1. Schedule workflow to run daily
2. Fetch email list from your database/API
3. Start batch validation with CampaignKit
4. Wait for job to complete (or use webhook trigger)
5. Get final job results
6. Send summary notification

Example 3: Webhook-Based Batch Validation

CampaignKit Trigger (Job Completed) → Filter (deliverable_count > 0) → HTTP Request (Update Database) → Slack Notification

1. CampaignKit Trigger listens for job completion
2. Filter to only process jobs with deliverable emails
3. Update your database with results
4. Send Slack notification with summary

Understanding Email Validation Scores

CampaignKit assigns each email a score from 0-10:

• 10: Valid - All checks passed, email is deliverable
• 9: Valid but unverified - Syntax and MX checks passed, but SMTP verification failed
• 2: Risky - Email exists but may be a spam trap or temporary
• 0: Invalid - Email will bounce

Key Output Fields

• is_valid: Email is deliverable (score 9-10)
• is_invalid: Email will bounce (score 0)
• is_risky: Email is suspicious (score 2)
• is_disposable: Temporary/disposable email service
• is_role_email: Generic role address (info@, support@, etc.)
• is_catchall: Domain accepts all email addresses
• is_blacklisted: Email is on CampaignKit's blacklist
• did_you_mean: Suggested correction for typos

API Rate Limits

CampaignKit API has the following limits:

• Authenticated requests: Based on your account plan
• Batch validation: Uses credits based on email count
• Webhook delivery: Up to 5 retry attempts with exponential backoff

Monitor your credit usage via the /v1/account/billing/balance endpoint or in your CampaignKit dashboard.

Troubleshooting

Credential Test Fails

• Verify your API key is correct
• Check that your CampaignKit account is active
• Ensure the Base URL is correct (default: https://api.campaignkit.cc)

Webhook Not Receiving Events

• Ensure your n8n instance is accessible from the internet
• Check that the workflow is activated
• Verify webhook was created successfully in CampaignKit dashboard
• Check n8n execution logs for incoming webhook requests

Batch Job Stuck in "Pending"

• Large batches may take time to process
• Use the Get Job Status operation to monitor progress
• Jobs process at approximately 100-500 emails/minute depending on validation type

"Insufficient Credits" Error

• Check your account credit balance
• Purchase additional credits in your CampaignKit dashboard
• Contact [email protected] for billing assistance

Development

Building the Node

npm install
npm run build

Local Testing

1. Build the node
2. Link it to your n8n installation:

   npm link
   cd ~/.n8n/nodes
   npm link n8n-nodes-campaignkit

3. Restart n8n

Project Structure

n8n-nodes-campaignkit/
├── credentials/
│   └── CampaignKitApi.credentials.ts
├── nodes/
│   └── CampaignKit/
│       ├── CampaignKit.node.ts
│       └── CampaignKitTrigger.node.ts
├── types/
│   └── CampaignKit.types.ts
├── package.json
├── tsconfig.json
└── README.md

Resources

• n8n community nodes documentation
• CampaignKit API Documentation
• CampaignKit Dashboard
• CampaignKit Support

Compatibility

• n8n version: 0.220.0 or higher
• Node.js version: 18.x or higher

License

MIT

Version History

0.1.0 (Initial Release)

• ✅ Validate Email operation
• ✅ Validate Batch operation
• ✅ Get Job Status operation
• ✅ Job Completed webhook trigger
• ✅ API Key authentication
• ✅ Comprehensive error handling

Support

For issues related to:

• This n8n node: Open an issue on GitHub
• CampaignKit API: Contact [email protected]
• n8n platform: Visit n8n community forum