Is kingofthecastles.com valid?
kingofthecastles.com should be blocked (risk: 55/100). Use the Check-Mail API to detect risky domains.
kingofthecastles.com is a domain that should be blocked from sign-ups or registrations. Based on our analysis, you should block this domain. If a user is trying to sign-up using an e-mail on this domain, it's likely that it's a malicious or fraudulent attempt.
Raw API JSON response:
{
"valid": true,
"block": true,
"domain": "kingofthecastles.com",
"base_domain": "kingofthecastles.com",
"text": "Suspicious",
"reason": "Anomalies detected",
"risk": 55,
"is_disposable": false,
"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": true,
"is_role_based_email": false,
"mx_host": "kingofthecastles.com",
"mx_ip": "13.248.169.48",
"mx_info": "Domain declares it accepts no mail (RFC 7505 null MX).",
"mx_fallback": false,
"mx_hosts": [],
"mx_ips": [],
"mx_priorities": [],
"email_provider": null,
"disposable_provider": null,
"possible_typo": [],
"domain_age_days": 9792,
"domain_created_at": "1999-11-11T00:00:00+00:00",
"block_status_changed_at": "2026-08-29T07:55:10+00:00"
}
Status: Suspicious
Domain risk: 55
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Technical Details for kingofthecastles.com
Risk Score
55 / 100
MX Host
kingofthecastles.com
Last updated: Aug 29, 2026
kingofthecastles.com Domain Age
kingofthecastles.com was registered on November 11, 1999 and is 26 years, 10 months old.
How to Block kingofthecastles.com
You can automatically block kingofthecastles.com and thousands of other disposable and fraudulent email domains using the free Check-Mail API. Simply query the API with any email domain to get an instant block recommendation.
Example API request:
curl -X POST "https://api.check-mail.org/v2/" \ -H "Authorization: Bearer YOUR_API_KEY" \ -d "domain=kingofthecastles.com"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
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