Is narro.app valid?

narro.app should be blocked (risk: 25/100). Use the Check-Mail API to detect risky domains.

narro.app

narro.app 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": "narro.app",
    "base_domain": "narro.app",
    "text": "Domain cannot receive email",
    "reason": "MX points to a non-routable address",
    "risk": 25,
    "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": true,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "narro.app",
    "mx_ip": "0.0.0.0",
    "mx_info": "Domain declares it accepts no mail (RFC 7505 null MX).",
    "mx_fallback": false,
    "mx_hosts": [],
    "mx_ips": [],
    "mx_priorities": [],
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 818,
    "domain_created_at": "2024-06-04T00:00:00+00:00",
    "block_status_changed_at": "2026-08-29T08:50:09+00:00"
}
narro.app should be blocked
narro.app

Status: Domain cannot receive email

RISK
LOW

Domain risk: 25

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Technical Details for narro.app

Risk Score

25 / 100

MX Host

narro.app

Last updated: Aug 29, 2026

narro.app Domain Age

narro.app was registered on June 4, 2024 and is 2 years, 2 months old.

How to Block narro.app

You can automatically block narro.app 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=narro.app"

Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.

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