Is to.eml.cc valid?
to.eml.cc should be blocked (risk: 75/100). Use the Check-Mail API to detect risky domains.
to.eml.cc 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": "to.eml.cc",
"base_domain": "eml.cc",
"text": "Domain is parked",
"reason": "parked",
"risk": 75,
"is_disposable": false,
"is_email_forwarder": false,
"is_public_free": false,
"is_public_premium": true,
"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": "in1-smtp.messagingengine.com",
"mx_ip": "103.168.172.218",
"mx_info": "Using MX pointer in1-smtp.messagingengine.com from DNS with priority: 10",
"mx_fallback": false,
"mx_hosts": [
"in1-smtp.messagingengine.com",
"in2-smtp.messagingengine.com"
],
"mx_ips": [
"103.168.172.218",
"103.168.172.219",
"103.168.172.220",
"103.168.172.221",
"103.168.172.222",
"103.168.172.223",
"103.168.172.216",
"103.168.172.217",
"202.12.124.216",
"202.12.124.217",
"202.12.124.218",
"202.12.124.219"
],
"mx_priorities": {
"in1-smtp.messagingengine.com": 10,
"in2-smtp.messagingengine.com": 20
},
"email_provider": "Fastmail",
"disposable_provider": null,
"possible_typo": [],
"domain_age_days": null,
"domain_created_at": null,
"block_status_changed_at": "2026-09-10T22:59:00+00:00"
}
Status: Domain is parked
Domain risk: 75
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Technical Details for to.eml.cc
Risk Score
75 / 100
MX Host
in1-smtp.messagingengine.com
Email Provider
Fastmail
Last updated: Sep 10, 2026
How to Block to.eml.cc
You can automatically block to.eml.cc 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=to.eml.cc"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
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