Is def.fr valid?

def.fr is a valid email domain (risk: 45/100). Verify email domains with the free Check-Mail API.

def.fr

def.fr is a valid domain that should be allowed to do sign-ups and registrations. Based on our analysis, you should allow this domain.

Raw API JSON response:

{
    "valid": true,
    "block": false,
    "domain": "def.fr",
    "base_domain": "def.fr",
    "text": "Looks okay",
    "reason": "none",
    "risk": 45,
    "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": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "def.fr",
    "mx_ip": "50.87.144.53",
    "mx_info": "No MX-pointer in DNS record. Using domain: def.fr",
    "mx_fallback": true,
    "mx_hosts": [],
    "mx_ips": [],
    "mx_priorities": [],
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 5253,
    "domain_created_at": "2012-06-13T00:00:00+00:00",
    "block_status_changed_at": "2026-09-06T21:25:38+00:00"
}
def.fr is a valid email domain
def.fr

Status: Looks okay

RISK
MEDIUM

Domain risk: 45

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Technical Details for def.fr

Risk Score

45 / 100

MX Host

def.fr

Last updated: Sep 6, 2026

def.fr Domain Age

def.fr was registered on June 13, 2012 and is 14 years, 4 months old.

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