Is def.fr valid?
How to block def.fr e-mail domain
def.fr
def.fr 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 for some reason.
The best way to detect and block domains like def.fr is to use the Check-Mail API, available for free, for all programming languages.
Raw API JSON response:
"valid": true,
"block": true,
"disposable": false,
"email_forwarder": false,
"domain": "def.fr",
"text": "Looks suspicious",
"reason": "Heuristics: T2",
"risk": 95,
"mx_host": "def.fr",
"possible_typo": [],
"mx_ip": "50.87.144.53",
"mx_info": "No MX-pointer in DNS record. Using domain: def.fr",
"last_changed_at": "2020-05-13T13:00:33+02:00"
}
def.fr
Status: Looks suspicious
RISK
HIGH
Domain risk: 95
Are you a programmer?
Did you know we have a free API to validate e-mails and block def.fr?