zapstack.co is a disposable email domain

zapstack.co is a disposable temp email domain from boxtemp.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": "zapstack.co",
    "base_domain": "zapstack.co",
    "text": "Disposable \/ temporary domain",
    "reason": "Disposable",
    "risk": 91,
    "is_disposable": true,
    "is_email_forwarder": true,
    "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": "route2.mx.cloudflare.net",
    "mx_ip": "162.159.205.19",
    "mx_info": "Using MX pointer route2.mx.cloudflare.net from DNS with priority: 5",
    "mx_fallback": false,
    "mx_hosts": [
        "route2.mx.cloudflare.net",
        "route1.mx.cloudflare.net",
        "route3.mx.cloudflare.net"
    ],
    "mx_ips": [
        "162.159.205.19",
        "162.159.205.18",
        "162.159.205.17",
        "162.159.205.11",
        "162.159.205.12",
        "162.159.205.13",
        "162.159.205.25",
        "162.159.205.23",
        "162.159.205.24"
    ],
    "mx_priorities": {
        "route1.mx.cloudflare.net": 52,
        "route2.mx.cloudflare.net": 5,
        "route3.mx.cloudflare.net": 53
    },
    "email_provider": "Cloudflare Email Routing",
    "disposable_provider": "boxtemp.com",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2026-09-13T15:39:06+00:00"
}