sejong.ac.kr

Valid Email Server
Domain Lookup › sejong.ac.kr
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sejong.ac.kr
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-27 20:54:10 UTC · ↺ Refresh

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MX Hostnames

  • sniper.sejong.ac.kr

MX Priorities

  • sniper.sejong.ac.kr: 5

A / AAAA Records

  • 210.107.239.136 ↩ www.sejong.ac.kr

Mail Server IPs

  • 210.107.239.134 ↩ sniper.sejong.ac.kr

SOA Record

Raw SOA sejong.ac.kr root.sejong.ac.kr 2007034844 10800 3600 2592000 900
Primary NS (mname)
sejong.ac.kr
Admin Email (rname)
root@sejong.ac.kr
Serial
2007034844
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
900s

Nameservers (NS)

ns2.sejong.ac.kr
ns.sejong.ac.kr

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:210.107.239.133 ip4:210.107.239.134 ip4:210.107.239.136 ip4:210.107.239.141 ip4:210.107.239.142 ip4:223.195.50.102 ip4:210.107.238.94 ip4:210.107.238.204 ip4:200.200.200.1 ip4:223.195.79.120 ip4:210.107.238.185 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • SPFv=spf1 ip4:210.107.239.133 ip4:210.107.239.134 ip4:210.107.239.136 ip4:210.107.239.141 ip4:210.107.239.142 ip4:223.195.50.102 ip4:210.107.238.94 ip4:210.107.238.204 ip4:200.200.200.1 ip4:223.195.79.120 ip4:210.107.238.185 ~all
  • google-site-verification=_KHR09c5IDeUNmiSs2CTQEXDqBfV1KU_SScLJmdtQ5Q
  • google-site-verification=PSD8zXtOAnZHmmpdl9i30goQH7hWLSDhHUfUGu2lj90
  • google-site-verification=fgMRaNwZhEEu1mmkK5wTizZ7tdE2gL3Z4qcu-bTUnu0
  • google-site-verification=_XZ5izF-R9Mm6cxyjUQi3qNW8mR7Omc7IxSP4p3p_iw
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