Is 42mail.com valid?
42mail.com should be blocked (risk: 100/100). Use the Check-Mail API to detect risky domains.
42mail.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": "42mail.com",
"base_domain": "42mail.com",
"text": "Highly suspicious",
"reason": "Anomalies detected",
"risk": 100,
"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": "42mail.com",
"mx_ip": "127.0.0.1",
"mx_info": "No MX-pointer in DNS record. Using domain: 42mail.com",
"mx_fallback": true,
"mx_hosts": [
"localhost"
],
"mx_ips": [
"127.0.0.1"
],
"mx_priorities": {
"localhost": 0
},
"email_provider": "Invalid",
"disposable_provider": null,
"possible_typo": [
"gmail.com"
],
"domain_age_days": 6559,
"domain_created_at": "2008-09-01T00:00:00+00:00",
"block_status_changed_at": "2026-07-16T21:08:13+00:00"
}
Status: Highly suspicious
Domain risk: 100
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Technical Details for 42mail.com
Risk Score
100 / 100
MX Host
42mail.com
Email Provider
Invalid
Last updated: Jul 16, 2026
42mail.com Domain Age
42mail.com was registered on September 1, 2008 and is 17 years, 11 months old.
How to Block 42mail.com
You can automatically block 42mail.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=42mail.com"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
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