Connect MailBounce to your stack

MailBounce plugs into the tools you already use through our REST API, webhooks, and Zapier. We're a newer service, so these are integrations you build with our clean JSON API or wire up via Zapier in minutes — not native one-click app-store listings. The result is the same: clean, verified email lists wherever your contacts live.

Mailchimp

Email marketing

Verify new and existing subscribers via Zapier or our API before they hit your audience, so you protect your sender reputation and stop paying for contacts you can't reach.

HubSpot

CRM & marketing

Validate form fills and CRM contacts through our REST API or a Zapier workflow to keep your HubSpot database clean and your deliverability metrics honest.

Salesforce

CRM

Call the MailBounce API from flows, Apex callouts, or Zapier to verify leads and contacts at the point of entry and reduce bounce-driven data decay in your org.

SendGrid (Twilio)

Email delivery

Pre-screen recipients with our real-time validation API before you hand them to SendGrid, cutting hard bounces that can throttle your sending throughput.

Brevo

Email & SMS marketing

Clean inbound contacts before they enter Brevo using our API or a Zapier connection, so your campaigns reach real inboxes and your stats stay accurate.

Klaviyo

Ecommerce marketing

Validate emails captured from checkout, popups, and signup forms via API or Zapier before syncing to Klaviyo, helping safeguard the deliverability your revenue depends on.

Zapier

Automation platform

Trigger MailBounce verification from thousands of apps with no-code Zaps, then route valid, invalid, or unknown results wherever you need them in your workflow.

Custom REST API & webhooks

Developer integration

Build your own integration on our clean JSON API and webhooks to verify emails in any app or backend, with bulk jobs that can notify your endpoint the moment results are ready.

Integrations