otona.uk is a disposable email domain

otona.uk is a disposable temp email domain from kuku.lu that provides throwaway email addresses and should be blocked. These temporary addresses are frequently exploited to bypass verification systems and create fake accounts.

Raw API JSON response:

{
    "valid": true,
    "block": true,
    "domain": "otona.uk",
    "base_domain": "otona.uk",
    "text": "Disposable \/ temporary domain",
    "reason": "Heuristics x2",
    "risk": 93,
    "is_disposable": true,
    "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": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "recv6.erinn.biz",
    "mx_ip": "133.130.99.7",
    "mx_info": "Using MX pointer otona.uk from DNS with priority: 10",
    "mx_fallback": false,
    "mx_hosts": [
        "recv6.erinn.biz",
        "recv7.erinn.biz",
        "recv8.erinn.biz",
        "recv1.erinn.biz",
        "recv100.erinn.biz",
        "recv101.erinn.biz",
        "recv2.erinn.biz",
        "recv3.erinn.biz",
        "recv4.erinn.biz",
        "recv5.erinn.biz"
    ],
    "mx_ips": [
        "133.130.99.7",
        "133.130.89.189",
        "160.251.83.189",
        "133.130.97.143",
        "160.251.96.188",
        "160.251.107.179",
        "133.130.97.104",
        "160.251.83.161",
        "118.27.118.63",
        "160.251.76.226"
    ],
    "mx_priorities": {
        "recv1.erinn.biz": 10,
        "recv2.erinn.biz": 10,
        "recv3.erinn.biz": 10,
        "recv4.erinn.biz": 10,
        "recv5.erinn.biz": 10,
        "recv6.erinn.biz": 10,
        "recv7.erinn.biz": 10,
        "recv8.erinn.biz": 10,
        "recv100.erinn.biz": 10,
        "recv101.erinn.biz": 10
    },
    "email_provider": null,
    "disposable_provider": "kuku.lu",
    "possible_typo": [],
    "domain_age_days": 210,
    "domain_created_at": "2025-09-15T00:00:00+00:00",
    "block_status_changed_at": "2025-10-01T03:57:22+00:00"
}