cosmos.jer.app is a disposable email domain

cosmos.jer.app is a disposable email domain (risk: 91/100). Block it with the free Check-Mail API.

cosmos.jer.app

cosmos.jer.app is a disposable temp email domain from vortex.skyfall.dev that provides throwaway email addresses and should be blocked. These temporary addresses are frequently exploited to bypass verification systems and create fake accounts.

Raw API JSON response:

{
    "valid": true,
    "block": true,
    "domain": "cosmos.jer.app",
    "base_domain": "jer.app",
    "text": "Disposable \/ temporary domain",
    "reason": "Disposable",
    "risk": 91,
    "is_disposable": true,
    "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": false,
    "is_role_based_email": false,
    "mx_host": "mail.vortex.skyfall.dev",
    "mx_ip": "1.1.1.1",
    "mx_info": "Using MX pointer mail.vortex.skyfall.dev from DNS with priority: 100",
    "mx_fallback": false,
    "mx_hosts": [
        "mail.vortex.skyfall.dev"
    ],
    "mx_ips": [
        "1.1.1.1"
    ],
    "mx_priorities": {
        "mail.vortex.skyfall.dev": 100
    },
    "email_provider": null,
    "disposable_provider": "vortex.skyfall.dev",
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2025-03-17T15:06:41+00:00"
}
cosmos.jer.app should be blocked
cosmos.jer.app

Status: Disposable / temporary domain

RISK
HIGH

Domain risk: 91

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Other domains from vortex.skyfall.dev

Our database contains more than 10 domains linked to this provider. Below are some of the most recently blocked ones:

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Technical Details for cosmos.jer.app

Risk Score

91 / 100

MX Host

mail.vortex.skyfall.dev

Disposable Provider

vortex.skyfall.dev

Detection Method

Advanced heuristics

This domain was blocked heuristically. Unknown domains are automatically analyzed and tagged with our advanced algorithms.

Last updated: Mar 17, 2025

How to Block cosmos.jer.app

You can automatically block cosmos.jer.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=cosmos.jer.app"

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

Frequently Asked Questions about cosmos.jer.app

What is cosmos.jer.app?

cosmos.jer.app is a disposable temporary email domain operated by vortex.skyfall.dev with a risk score of 91/100. It provides users with throwaway email addresses for anonymous online activities.

Should I block cosmos.jer.app?

Yes. cosmos.jer.app is a disposable email domain with a HIGH risk level (score: 91/100). We recommend blocking this domain to prevent fake sign-ups, spam registrations, and potential fraud.

How do I block cosmos.jer.app emails?

Use the free Check-Mail API to automatically detect and block cosmos.jer.app and thousands of other disposable email domains. See the documentation for integration guides or get started with a free API key.

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