smtp.dev is a disposable email domain
smtp.dev is a disposable email domain (risk: 91/100). Block it with the free Check-Mail API.
smtp.dev is a disposable temp email domain from smtp.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": "smtp.dev",
"base_domain": "smtp.dev",
"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": true,
"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": "mx.yandex.net",
"mx_ip": "77.88.21.249",
"mx_info": "Using MX pointer mx.yandex.net from DNS with priority: 10",
"mx_fallback": false,
"mx_hosts": [
"mx.yandex.net"
],
"mx_ips": [
"77.88.21.249"
],
"mx_priorities": {
"mx.yandex.net": 10
},
"email_provider": "Yandex 360 for Business",
"disposable_provider": "smtp.dev",
"possible_typo": [],
"domain_age_days": 2741,
"domain_created_at": "2019-02-27T00:00:00+00:00",
"block_status_changed_at": "2026-07-21T12:08:47+00:00"
}
Status: Disposable / temporary domain
Domain risk: 91
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Other domains from smtp.dev
Our database contains more than 100 domains linked to this provider. Below are some of the most recently blocked ones:
Technical Details for smtp.dev
Risk Score
91 / 100
MX Host
mx.yandex.net
Disposable Provider
Detection Method
Advanced heuristics
This domain was blocked heuristically. Unknown domains are automatically analyzed and tagged with our advanced algorithms.
Last updated: Jul 21, 2026
smtp.dev Domain Age
smtp.dev was registered on February 27, 2019 and is 7 years, 6 months old.
How to Block smtp.dev
You can automatically block smtp.dev 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=smtp.dev"
Get your free API key or read the documentation for integration guides in PHP, Python, JavaScript, and more.
Frequently Asked Questions about smtp.dev
What is smtp.dev?
smtp.dev is a disposable temporary email domain operated by smtp.dev with a risk score of 91/100. It provides users with throwaway email addresses for anonymous online activities.
Should I block smtp.dev?
Yes. smtp.dev 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 old is smtp.dev?
smtp.dev was registered on February 27, 2019 and is 7 years, 6 months old.
How do I block smtp.dev emails?
Use the free Check-Mail API to automatically detect and block smtp.dev 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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