Integrations

InboxSure works alongside the tools you already use. Export your list, verify with InboxSure, and re-import only the clean contacts — or connect our API to verify at sign-up in real time.

Email Marketing

InboxSure + Mailchimp

High bounce rates in Mailchimp hurt your sender score. Learn how to verify your Mailchimp list with InboxSure and import only clean, deliverable addresses.

CRM

InboxSure + HubSpot

Invalid contacts in HubSpot inflate your bounce rate and skew your reporting. Here's how to verify and clean your HubSpot contact lists with InboxSure.

E-commerce Marketing

InboxSure + Klaviyo

Klaviyo's deliverability depends on a clean list. Verify your Klaviyo segments with InboxSure to protect your sender reputation and improve open rates.

Transactional Email

InboxSure + SendGrid

SendGrid's deliverability depends on a clean recipient list. Verify your contacts with InboxSure before sending to keep bounces low and reputation high.

Marketing Automation

InboxSure + ActiveCampaign

ActiveCampaign automations send to whoever's on your list — invalid contacts and all. Verify your list with InboxSure so your automations only run for real, deliverable addresses.

Email Marketing

InboxSure + Brevo

Brevo (formerly Sendinblue) tracks bounces and complaints aggressively. Verify your contacts with InboxSure before sending to protect your sender score and keep transactional flows healthy.

Don't see your platform?

InboxSure's REST API works with any platform that can make an HTTP request. If you can export a CSV, you can verify with InboxSure — no native integration required.

View API Docs