twghkywc.edu.hk

Valid Email Server
Domain Lookup › twghkywc.edu.hk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
twghkywc.edu.hk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 02:55:21 UTC · ↺ Refresh

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MX Hostnames

  • mx02.greenradar.com
  • mx01.greenradar.com

MX Priorities

  • mx01.greenradar.com: 10
  • mx02.greenradar.com: 20

A / AAAA Records

  • 103.68.61.133 ↩ 103.68.61.133.layerdns.cloud

Mail Server IPs

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

SOA Record

Raw SOA cory.ns.cloudflare.com dns.cloudflare.com 2397343568 10000 2400 604800 1800
Primary NS (mname)
cory.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397343568
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

priscilla.ns.cloudflare.com
cory.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
google._domainkey
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

6 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=E64FE0F0A41FAA65561CA836D856DACFD72F4865
  • MS=ms55669212
  • apple-domain-verification=8YeHjM8lZfSQpIzA
  • google-site-verification=S4scgP792Q2HM8Q80r7vRt_CxYEL0zsxwD24LteGQ6I
  • SPFv=spf1 +mx +a +ip4:103.254.210.214 +ip4:202.74.40.227 +ip4:218.253.200.30 +include:_spf.google.com +include:spf.eclasscloud.hk ~all
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