1sec-mail.com is a disposable email domain
How to block 1sec-mail.com disposable temporary e-mail domain
1sec-mail.com
1sec-mail.com is a disposable temp email domain that provides users with temporary email addresses for anonymous online activities, and should be blocked. This disposable temp e-mail domain allows individuals to create short-lived email accounts without revealing their real email. While these temporary email services can be useful for one-time registrations or avoiding spam, they're frequently exploited by spammers and malicious users who want to bypass verification systems and create fake accounts.
Disposable email addresses from domains like 1sec-mail.com can impact your website's security and data quality. Temporary email services like these enable users to create multiple fake accounts, spam registrations, and potential fraud. Users that sign-up with a disposable temp e-mail address typically abandon the account immediately after use.
The best way to detect and block disposable temp email domains like 1sec-mail.com is to use the Check-Mail API, available for free, for all programming languages.
Raw API JSON response:
"valid": true,
"block": true,
"disposable": true,
"email_forwarder": false,
"domain": "1sec-mail.com",
"text": "Disposable \/ temporary domain",
"reason": "Disposable",
"risk": 91,
"mx_host": "mail.1sec-mail.com",
"possible_typo": [],
"mx_ip": "91.107.182.197",
"mx_info": "Using MX pointer mail.1sec-mail.com from DNS with priority: 0",
"last_changed_at": "2025-08-22T04:55:48+02:00"
}
1sec-mail.com
Status: Disposable / temporary domain
Domain risk: 91
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