How to block email.nu invalid e-mail domain
This domain is valid and should be able to receive e-mail.
Using MX pointer mx.email.nu from DNS with priority: 0
You should block this domain for signups/registrations.
This does not look like a temporary/disposable e-mail domain.
Anomalies detected
DOMAIN RISK: 90
Are you a programmer?
Did you know we have a free API to validate e-mails and block email.nu?