Is dsu.ac.kr valid?

dsu.ac.kr 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": "dsu.ac.kr",
    "base_domain": "dsu.ac.kr",
    "text": "Looks okay",
    "reason": "Heuristics: WM1",
    "risk": 10,
    "is_disposable": false,
    "is_email_forwarder": false,
    "is_public_free": false,
    "is_public_premium": false,
    "is_business_provider": true,
    "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": "alt4.aspmx.l.google.com",
    "mx_ip": "172.253.152.27",
    "mx_info": "Using MX pointer aspmx.l.google.com from DNS with priority: 1",
    "mx_fallback": false,
    "mx_hosts": [
        "alt4.aspmx.l.google.com",
        "alt3.aspmx.l.google.com",
        "alt2.aspmx.l.google.com",
        "alt1.aspmx.l.google.com",
        "aspmx.l.google.com"
    ],
    "mx_ips": [
        "172.253.152.27",
        "172.217.221.26",
        "142.251.127.27",
        "172.253.158.26",
        "108.177.15.27"
    ],
    "mx_priorities": {
        "aspmx.l.google.com": 1,
        "alt1.aspmx.l.google.com": 2,
        "alt2.aspmx.l.google.com": 2,
        "alt3.aspmx.l.google.com": 5,
        "alt4.aspmx.l.google.com": 5
    },
    "email_provider": "Google Workspace",
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 9485,
    "domain_created_at": "2000-04-11T00:00:00+00:00",
    "block_status_changed_at": "2020-05-22T02:42:09+00:00"
}