2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com is a disposable email domain

2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com is a disposable temp email domain from Burp Collaborator 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": "2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com",
    "base_domain": "oastify.com",
    "text": "Disposable email provider",
    "reason": "Heuristics: BP3",
    "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": "2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com",
    "mx_ip": "54.77.139.23",
    "mx_info": "No MX-pointer in DNS record. Using domain: 2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com",
    "mx_fallback": true,
    "mx_hosts": [
        "2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com"
    ],
    "mx_ips": [
        "54.77.139.23"
    ],
    "mx_priorities": {
        "2y1stdtwmco05ud45gnt5ittbkhb51tq.oastify.com": 0
    },
    "email_provider": null,
    "disposable_provider": "Burp Collaborator",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2026-09-21T11:06:49+00:00"
}