ouhk.edu.hk

Valid Email Server
Domain Lookup › ouhk.edu.hk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ouhk.edu.hk
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-14 02:23:42 UTC · ↺ Refresh

MX Hostnames

  • ouhk-edu-hk.mail.dr.greenradar.com
  • ouhk-edu-hk.mail.hk.greenradar.com

MX Priorities

  • ouhk-edu-hk.mail.hk.greenradar.com: 10
  • ouhk-edu-hk.mail.dr.greenradar.com: 20

A / AAAA Records

  • 202.40.220.23 ↩ ichecker.ouhk.edu.hk

Mail Server IPs

  • 203.85.49.142 ↩ hk02extb.greenradar.com
  • 152.101.60.164 ↩ sg01extb.greenradar.com

SOA Record

Raw SOA ns1.ouhk.edu.hk postmaster.ns1.ouhk.edu.hk 2026022601 1800 900 259200 43200
Primary NS (mname)
ns1.ouhk.edu.hk
Admin Email (rname)
postmaster@ns1.ouhk.edu.hk
Serial
2026022601
Refresh
1800s
Retry
900s
Expire
259200s
Minimum TTL
43200s

Nameservers (NS)

ns6.ouhk.edu.hk
ns1.ouhk.edu.hk
ns2.ouhk.edu.hk
ns5.ouhk.edu.hk

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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
  • v=msv1 t=30877a8209dd4eafd26e8b7e1d89b3
  • google-site-verification=6SZTuXwJeNZUcNZrWvjqMcozBrDsC0z5hk_GVrxDpsc
  • apple-domain-verification=smhEgwTOad06wFSR
  • google-site-verification=lyu3mo7IgmUenBeAusR3atc1Ahk9v9r9HI3qxJWQiVY
  • zym0w9rpxq9gq7tss80r1vv0jgfth6p3
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