Is unver.nl valid?
How to block unver.nl e-mail domain
unver.nl
unver.nl is a domain that should be blocked from sign-ups or registrations. Based on our analysis, you should block this domain. If a user is trying to sign-up using an e-mail on this domain, it's likely that it's a malicious or fraudulent attempt for some reason.
The best way to detect and block domains like unver.nl is to use the Check-Mail API, available for free, for all programming languages.
Raw API JSON response:
{
"valid": true,
"block": true,
"disposable": false,
"email_forwarder": false,
"domain": "unver.nl",
"text": "Highly suspicious",
"reason": "Anomalies detected",
"risk": 100,
"mx_host": "mail.unver.nl",
"possible_typo": [],
"mx_ip": "185.104.29.22",
"mx_info": "Using MX pointer mail.unver.nl from DNS with priority: 10",
"last_changed_at": "2026-02-18T15:57:44+00:00"
}
unver.nl
Status: Highly suspicious
RISK
HIGH
Domain risk: 100
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Did you know we have a free API to validate e-mails and block unver.nl?