Clean up store sign-ups, checkout emails, and newsletter opt-ins with the highest accuracy.
Real-Time Results, No Emails Sent
Verify lists instantly so you can launch campaigns on schedule.
7-Step Verification Process
SMTP, DNS, MX, pattern analysis, and more ensure accurate validation.
Built for Scale
Handle large subscriber lists, bulk uploads, and automated syncing with your email platform.
Launch Campaigns That Drive More Revenue
From abandoned cart reminders to seasonal promotions, your campaigns only work if they land in the inbox.
1B+
emails verified
99%
SMTP verification accuracy
99%
catch-all verification accuracy
Get Over 50% More Deliverable Contacts
Most verification tools discard catch-all emails that could be valid shoppers. Listmint verifies them in real time, helping you send campaigns to up to 50% more addresses and drive higher revenue.
Upload your entire customer database or segmented lists from your ESP. Get clean data in seconds and sync it back to Klaviyo, Mailchimp, or any marketing platform.
Real-Time API
Add verification to checkout, lead capture, and newsletter signup forms so every new customer email is valid before they enter your system.
Protect Your Sender Reputation
Avoid spam folders and keep your domain reputation strong so your campaigns consistently land in inboxes.
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