Emails are everywhere — login credentials, signup forms, password resets. But not all emails are created equal. Typos, fake domains, throwaway inboxes — they all introduce friction, fraud, or failure into your system.

Email validation lets you screen addresses at the point of entry. Before a verification link bounces. Before spam creeps in. Before a fake account gets through.

The Cerberius Email Validation API analyzes structure, domain, deliverability, and behavior. It checks syntax and MX records. It confirms SPF and DMARC. It even tells you if the address is temporary, shared, or part of a catch-all inbox. You get back a validity_score and actionable fields that help you decide: trust, flag, or reject.

This isn't just about preventing bouncebacks. It's about preventing abuse. Fake emails often correlate with fake intent — from spam accounts to phishing setups. And by validating upfront, you reduce the surface area attackers can use.

Applied during onboarding, email validation acts as a low-friction risk gate. You keep legitimate users flowing, while quietly weeding out the junk. Combine it with IP intelligence and behavioral signals, and you get layered, adaptive trust scoring — at scale.