Is preuniversitario.com.br valid?

preuniversitario.com.br 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.

Raw API JSON response:

{
    "valid": true,
    "block": true,
    "domain": "preuniversitario.com.br",
    "base_domain": "preuniversitario.com.br",
    "text": "Highly suspicious",
    "reason": "Anomalies detected",
    "risk": 100,
    "is_disposable": false,
    "is_email_forwarder": false,
    "is_public_free": false,
    "is_public_premium": false,
    "is_business_provider": false,
    "is_isp_email": false,
    "is_email_api": false,
    "is_web_hosting_email": true,
    "is_self_hosted": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "mx-vip-01.kinghost.net",
    "mx_ip": "191.6.216.38",
    "mx_info": "Using MX pointer mx-vip-01.kinghost.net from DNS with priority: 5",
    "mx_fallback": false,
    "mx_hosts": [
        "mx-vip-01.kinghost.net",
        "mx-vip-02.kinghost.net"
    ],
    "mx_ips": [
        "191.6.216.38",
        "191.6.216.39"
    ],
    "mx_priorities": {
        "mx-vip-01.kinghost.net": 5,
        "mx-vip-02.kinghost.net": 5
    },
    "email_provider": "KingHost",
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 1292,
    "domain_created_at": "2023-02-15T00:00:00+00:00",
    "block_status_changed_at": "2022-02-12T16:37:21+00:00"
}