Integrations
CampaignKit integrates directly with your favorite email marketing platforms, making it easy to validate and clean your contact lists without manual import/export workflows.
What Are Integrations?
Integrations are direct connections between CampaignKit and your email marketing platform or CRM. Once connected, you can:
- Validate all your contacts in bulk with a single click
- Automatically validate new contacts as they’re added
- Tag or classify contacts based on validation results
- Keep your data in your existing platform—no exports needed
All integrations use secure OAuth or API key authentication to ensure your data remains safe.
Why Use Integrations?
Save Time
No need to export contacts, upload to CampaignKit, and import results back. Everything happens automatically within your platform.
Keep Lists Clean
Set up automatic validation for new contacts to prevent invalid emails from entering your database in the first place.
Better Organization
Contacts are tagged or classified based on validation results, making it easy to segment and filter your lists for targeted campaigns.
Maintain Data Integrity
Your contacts stay in your platform. CampaignKit only adds validation data—we never delete or modify your existing contact information.
Available Integrations
Mailjet
Validate contacts across all your Mailjet accounts with bulk validation. CampaignKit adds two custom attributes (cpkit_classifier and cpkit_score) to each contact, allowing you to filter and segment based on email quality.
View Mailjet integration guide →
Mailchimp
Connect via OAuth to validate contacts in your Mailchimp audiences. Invalid and risky emails are automatically tagged, making it easy to filter them out before sending campaigns.
View Mailchimp integration guide →
HubSpot CRM
The most advanced integration: automatically validate new and updated contacts via webhooks, plus bulk validate your existing database. Custom properties show email classification and score directly in HubSpot.
View HubSpot integration guide →
Fluent CRM (WordPress)
A WordPress plugin that validates contacts in Fluent CRM and tags invalid email addresses. Perfect for WordPress users managing their email lists with Fluent CRM.
View Fluent CRM integration guide →
Zapier
Connect CampaignKit with 7,000+ apps through Zapier to automate email validation workflows. Validate emails from forms, spreadsheets, CRMs, and e-commerce platforms in real-time, with no coding required.
View Zapier integration guide →
How Integrations Work
All CampaignKit integrations follow a similar pattern:
- Connect - Authorize CampaignKit to access your platform via OAuth or API keys
- Validate - Run bulk validation on existing contacts or set up automatic validation for new contacts
- Review - Check the results using tags, custom attributes, or custom properties added to your contacts
- Act - Filter, segment, or remove contacts based on validation results
Security & Privacy
- OAuth Security: Most integrations use OAuth for secure, token-based authentication
- No Data Deletion: CampaignKit never deletes your contacts—we only add classification data
- GDPR Compliant: All integrations follow GDPR requirements for data processing
- Read-Only When Possible: We only request the minimum permissions needed for validation
Getting Started
Ready to connect your email platform? Choose an integration above to view the setup guide. Each integration includes step-by-step instructions with screenshots to help you get started quickly.
Need help? Contact our support team or check the individual integration guides for troubleshooting tips.