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": "Domain does not exist",
"reason": "does_not_exist",
"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": 5423,
"domain_created_at": "2011-12-29T00:00:00+00:00",
"block_status_changed_at": "2026-08-20T07:07:28+00:00"
}
Status: Domain does not exist
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, 10 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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