Is ff1.co.uk valid?

ff1.co.uk 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.

Raw API JSON response:

{
    "valid": true,
    "block": true,
    "domain": "ff1.co.uk",
    "base_domain": "ff1.co.uk",
    "text": "Domain cannot receive email",
    "reason": "MX points to a non-routable address",
    "risk": 50,
    "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": "sink.yourself.uk",
    "mx_ip": "127.0.0.1",
    "mx_info": "Using MX pointer sink.yourself.uk from DNS with priority: 1024",
    "mx_fallback": false,
    "mx_hosts": [
        "sink.yourself.uk"
    ],
    "mx_ips": [
        "127.0.0.1"
    ],
    "mx_priorities": {
        "sink.yourself.uk": 1024
    },
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 812,
    "domain_created_at": "2024-06-29T00:00:00+00:00",
    "block_status_changed_at": "2023-08-18T16:53:06+00:00"
}