Email Verification

Email Verification for White-Label Agencies

White-label agencies manage email campaigns for multiple brands and often operate behind the scenes. Dirty lists lead to poor results, client dissatisfaction, and higher churn risk.

We Verify Client Data Others Can’t

SMTP and Catch-All Verification
Validate subscriber, prospect, and customer emails that generic tools fail to confirm.
Real-Time Results, No Emails Sent
Clean lists instantly so campaigns stay on schedule.
7-Step Verification Process
Includes SMTP, DNS, MX, and pattern analysis for industry-best accuracy.
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Built for Scale
Perfect for agencies managing dozens of client accounts and large contact databases.

Protect Client Reputation and Retention

When campaigns perform, clients stay longer. Verified lists keep deliverability high and results strong across all client accounts.

1B+

emails verified

99%

SMTP verification accuracy

99%

catch-all verification accuracy

Get Over 50% More Valid Contacts

Generic verification tools discard catch-all domains, which can include many of your clients’ best prospects. Listmint verifies them in real time so you can maximize results across all campaigns.
Scale Your White-Label Offering
Proof of Results: 84% Valid vs 55% Industry Average
Generic verifiers return only 55% valid contacts, limiting your campaign reach. Listmint customers see up to 84% valid results, which means better open rates, click rates, and happier clients.
Real-Time API for Seamless Client Workflows
Integrate Listmint’s API into your agency’s process to automatically verify leads as they’re captured. This keeps lists clean for every client without extra manual work.
Support, Dashboards, and Reporting
Access detailed reporting you can share with clients or white-label for a completely branded experience. Our team supports you in proving ROI and growing client accounts.

Verify all your emails, even Catch-alls in real-time with our Email Verification Software.

Create an account for free.

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