topclassduct.xyz is a disposable email domain

topclassduct.xyz is a disposable temp email domain from throwaway.io 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": "topclassduct.xyz",
    "base_domain": "topclassduct.xyz",
    "text": "Disposable \/ temporary domain",
    "reason": "Disposable",
    "risk": 100,
    "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": true,
    "is_parked": null,
    "is_role_based_email": false,
    "mx_host": "mail.topclassduct.xyz",
    "mx_ip": "185.99.254.19",
    "mx_info": "Using MX pointer mail.topclassduct.xyz from DNS with priority: 5",
    "mx_fallback": false,
    "mx_hosts": [
        "mail.topclassduct.xyz"
    ],
    "mx_ips": [
        "185.99.254.19"
    ],
    "mx_priorities": {
        "mail.topclassduct.xyz": 5
    },
    "email_provider": null,
    "disposable_provider": "throwaway.io",
    "possible_typo": [],
    "domain_age_days": 44,
    "domain_created_at": "2026-08-13T00:00:00+00:00",
    "block_status_changed_at": "2026-09-25T06:54:22+00:00"
}