haymail.cyou is a disposable email domain

haymail.cyou is a disposable temp email domain from tempmailapi.io.vn 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": "haymail.cyou",
    "base_domain": "haymail.cyou",
    "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": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "a.tempmailapi.io.vn",
    "mx_ip": "165.232.164.223",
    "mx_info": "Using MX pointer a.tempmailapi.io.vn from DNS with priority: 10",
    "mx_fallback": false,
    "mx_hosts": [
        "a.tempmailapi.io.vn"
    ],
    "mx_ips": [
        "165.232.164.223"
    ],
    "mx_priorities": {
        "a.tempmailapi.io.vn": 10
    },
    "email_provider": null,
    "disposable_provider": "tempmailapi.io.vn",
    "possible_typo": [],
    "domain_age_days": 42,
    "domain_created_at": "2026-05-28T00:00:00+00:00",
    "block_status_changed_at": "2026-07-09T20:22:59+00:00"
}