Is gbn.hkj valid?
gbn.hkj is an invalid email domain. Block invalid domains with the free Check-Mail API.
gbn.hkj is an invalid domain that should be blocked from sign-ups or registrations. Based on our analysis, you should block this invalid domain. If a user is trying to sign-up using an e-mail on this domain, it's likely a typo, or a malicious attempt.
Raw API JSON response:
{
"valid": false,
"block": true,
"disposable": false,
"email_forwarder": false,
"domain": "gbn.hkj",
"text": "Invalid domain - no DNS records",
"reason": "Domain has no MX or A records",
"risk": 100,
"mx_host": null,
"possible_typo": [],
"mx_ip": null,
"mx_info": "No MX or A records found",
"last_changed_at": null
}
Status: Invalid domain - no DNS records
Domain risk: 100
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Technical Details for gbn.hkj
Risk Score
100 / 100
MX Host
N/A
Last updated: Mar 24, 2026
How to Block gbn.hkj
You can automatically block gbn.hkj 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=gbn.hkj"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
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