The four layers of email verification
Most people think email verification is just a regex. It is not. A real verification pipeline runs four independent checks, and skipping any one of them leaves a hole fraudsters walk straight through.
1. Syntax (RFC 5322)
The address must be structurally valid. This catches typos like `john@@gmail` or trailing dots. Syntax alone, though, says nothing about whether the mailbox exists.
2. Domain & MX records
The real signal is the domain's MX (Mail Exchange) records. If a domain has no MX records, it cannot receive mail — full stop. Verix performs a live DNS lookup on every check, so you know the domain can actually accept mail right now, not last quarter.
3. Disposable & role detection
Temporary inbox providers (Mailinator, Guerrilla Mail and hundreds more) are a giant red flag for fraud and trial abuse. Role accounts like `info@` or `support@` are not people and hurt deliverability. Verix flags both.
4. Risk scoring
Finally, the signals combine into a single 0–100 score and a verdict: valid, risky, or invalid. That is what your signup flow or CRM should act on.
Why bounce rate is a business problem
High bounce rates wreck sender reputation. Once mailbox providers distrust you, even your good email lands in spam. Verifying at the point of capture keeps your list clean and your reputation intact.
Ready to clean your data? Try Verix free — 50 verifications a month, no card required. Verify email, phone and IP risk in one call.