Is 13239.com valid?

13239.com 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": "13239.com",
    "base_domain": "13239.com",
    "text": "Domain cannot receive email",
    "reason": "MX points to a non-routable address",
    "risk": 60,
    "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": false,
    "is_self_hosted": true,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "mail.13239.com",
    "mx_ip": "127.0.0.1",
    "mx_info": "Using MX pointer mail.13239.com from DNS with priority: 0",
    "mx_fallback": false,
    "mx_hosts": [
        "mail.13239.com"
    ],
    "mx_ips": [
        "127.0.0.1"
    ],
    "mx_priorities": {
        "mail.13239.com": 0
    },
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 6402,
    "domain_created_at": "2009-02-08T00:00:00+00:00",
    "block_status_changed_at": "2026-08-12T20:20:56+00:00"
}