Real-Time Email Verification for SaaS Signups
Block fake accounts at the door
1-3s
per verification via API
800+
disposable email providers detected
90%+
reduction in fake signups
The Problem
Fake signups with disposable emails, typos, and non-existent addresses waste server resources, inflate your metrics, and never convert to paying customers. They also distort your funnel analytics and create support overhead.
The Solution
Add real-time email verification to your signup flow using Mailthentic's API. Validate each address in 1-3 seconds and reject invalid emails before they enter your database.
Key Benefits
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Block disposable and temporary email addresses
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Catch typos in real time (gmial.com → gmail.com)
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Reduce fake account creation by 90%+
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Improve onboarding email deliverability
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Get accurate user and funnel metrics
Getting Started
Sign up for free
Create an account and get 1,000 free verification credits, no credit card required.
Upload or connect your list
Upload a CSV, connect your CRM via OAuth, or integrate our API into your workflow.
Verify and clean
Our 9-point verification engine checks every address. Remove invalids, quarantine risky addresses, and keep the clean ones.
Send with confidence
Lower bounces, better deliverability, and a protected sender reputation. Your campaigns will thank you.
Ready to integrate verification api?
Start with 1,000 free verification credits. No credit card required.