Is 42mail.com valid?

42mail.com should be blocked (risk: 100/100). Use the Check-Mail API to detect risky domains.

42mail.com

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"
}
42mail.com should be blocked
42mail.com

Status: Highly suspicious

RISK
HIGH

Domain risk: 100

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Did you know we have a free API to validate e-mails and block 42mail.com?

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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