mnu.ac.kr

Email infrastructure report · Last checked 28 Jul 2026, 19:26 UTC

Summary

mnu.ac.kr uses Self-hosted / Custom for email and has SPF and DMARC configured. It is a catch-all domain.

Mail provider

ProviderSelf-hosted / Custom self-hosted

Primary MXgcmx01.govkorea.kr

MX records

Priority	Hostname	IPs
10	gcmx01.govkorea.kr	211.251.247.120
10	gcmx05.govkorea.kr	210.179.58.249
10	gcmx02.govkorea.kr	211.251.247.125
10	gcmx03.govkorea.kr	211.251.247.125

Authentication

SPF✓ Present ~all

DKIM? Not detected via common selectors

DMARC✓ Present p=none

Raw SPF record

v=spf1 mx include:govkorea.kr ~all

Raw DMARC record

v=DMARC1; p=none; rua=mailto:admin@mnu.ac.kr

Email behavior

Catch-all✓ Yes

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response882ms

SMTP banner220 gcmx01.govkorea.kr CTS ESMTP ready. Wed, 29 Jul 2026 04:26:36 +0900 (KST)

What this means

This domain is missing DKIM, which weakens its protection against email spoofing. Adding this record would improve deliverability and reduce the risk of impersonation.

Refresh this report

Cached results are kept indefinitely. If you think the data above is out of date, run a fresh check below. Refreshes are rate-limited (1 per domain every 5 minutes).

Want to verify individual addresses at mnu.ac.kr?

CheckMail's API verifies real-time deliverability with SMTP checks, not just DNS lookups. 100 free credits, no credit card required.

Get an API key →

curl https://api.checkmail.dev/v1/verify \
  -G --data-urlencode "email=test@mnu.ac.kr" \
  -H "Authorization: Bearer cm_live_..."