buttersc.site is a disposable email domain

buttersc.site is a disposable temp email domain from emailqu.com 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": "buttersc.site",
    "base_domain": "buttersc.site",
    "text": "Disposable email provider",
    "reason": "Heuristics: BP3",
    "risk": 90,
    "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": "emailqu.com",
    "mx_ip": "178.83.181.64",
    "mx_info": "Using MX pointer emailqu.com from DNS with priority: 1",
    "mx_fallback": false,
    "mx_hosts": [
        "emailqu.com"
    ],
    "mx_ips": [
        "178.83.181.64"
    ],
    "mx_priorities": {
        "emailqu.com": 1
    },
    "email_provider": null,
    "disposable_provider": "emailqu.com",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2026-08-10T19:39:41+00:00"
}