Is galaginae.best valid?

How to block galaginae.best invalid e-mail domain

Domain: galaginae.best

Valid: Yes, but should be blocked

This domain is valid and should be able to receive e-mail.

Tested MX: galaginae.best (52.4.209.250)

No MX-pointer in DNS record. Using domain: galaginae.best

Block: Yes

You should block this domain for signups/registrations.

Disposable: No

This does not look like a temporary/disposable e-mail domain.

API reason:

Anomalies detected

Raw API response:
{
    "valid": true,
    "block": true,
    "disposable": false,
    "email_forwarder": false,
    "domain": "galaginae.best",
    "text": "Highly suspicious",
    "reason": "Anomalies detected",
    "risk": 99,
    "mx_host": "galaginae.best",
    "possible_typo": [],
    "mx_ip": "52.4.209.250",
    "mx_info": "No MX-pointer in DNS record. Using domain: galaginae.best",
    "last_changed_at": "2020-12-10T17:43:15+01:00"
}
Block domain

galaginae.best

Status: Highly suspicious

RISK
HIGH

Domain risk: 99

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