Is customct.com valid?
customct.com is an invalid email domain. Block invalid domains with the free Check-Mail API.
customct.com 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,
"domain": "customct.com",
"base_domain": "customct.com",
"text": "Invalid domain.",
"reason": "Domain is no longer registered",
"risk": 10,
"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": true,
"is_self_hosted": false,
"is_parked": false,
"is_role_based_email": false,
"mx_host": "mx1.hostinger.com",
"mx_ip": "172.65.182.103",
"mx_info": "Using MX pointer mx1.hostinger.com from DNS with priority: 5",
"mx_fallback": false,
"mx_hosts": [
"mx1.hostinger.com",
"mx2.hostinger.com"
],
"mx_ips": [
"172.65.182.103"
],
"mx_priorities": {
"mx1.hostinger.com": 5,
"mx2.hostinger.com": 10
},
"email_provider": "Hostinger",
"disposable_provider": null,
"possible_typo": [],
"domain_age_days": 5353,
"domain_created_at": "2011-12-29T00:00:00+00:00",
"block_status_changed_at": "2026-08-20T07:07:28+00:00"
}
Status: Invalid domain.
Domain risk: 10
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Technical Details for customct.com
Risk Score
10 / 100
MX Host
mx1.hostinger.com
Email Provider
Hostinger
Last updated: Aug 20, 2026
customct.com Domain Age
customct.com was registered on December 29, 2011 and is 14 years, 8 months old.
How to Block customct.com
You can automatically block customct.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=customct.com"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
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