Email verification integrates directly with your email service provider (ESP), CRM, or marketing automation platform to check addresses for accuracy before sending. This helps ensure your messages reach real inboxes and maintain good sender reputation.

You can connect email verification tools to platforms like Mailchimp, HubSpot, Salesforce, Pipedrive, ActiveCampaign, Brevo, Klaviyo, Customer.io, and ConvertKit. These integrations allow you to verify email addresses at point-of-entry or during list cleaning, reducing bounces and improving deliverability.

By pairing verification with your workflow, you avoid sending to invalid or risky addresses. This is especially useful when syncing data from forms, spreadsheets, or CRM records. Many platforms offer native or third-party connectors that automate verification without requiring code.

What you'll find in this hub

  • Step-by-step guides to integrate email verification with ActiveCampaign, Brevo, and Klaviyo
  • How to verify emails in CRM systems like Salesforce and Pipedrive
  • Setup instructions for email verification in Mailchimp and ConvertKit
  • Automated workflows using Zapier and other integration tools
  • Best practices for maintaining list hygiene across marketing platforms
  • Troubleshooting common issues in email verification integrations

Start here

Browse all 325 articles in Email verification integrations for ESPs, CRMs and marketing tools →

Put it to work

Try the checks described here on your own data: verify an email address or a list with EmailListChecker.