Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oshc.org.hk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 08:38:00 UTC · ↺ Refresh
MX Hostnames
- oshc-org-hk.mail.protection.outlook.com
MX Priorities
- oshc-org-hk.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:52.221.47.157 ip4:202.128.227.147 ip4:202.128.231.147 ip4:202.128.230.147 ip4:202.64.158.2 ip4:203.80.0.5 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=86400; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- mscid=UeHnwBK499GI4hajJBr6U4xfIdf+06AQTOnCBqN8GerC82yjzysd6k9YHnZ0xUfWBLcyG78gL1gacIFmnRoLFA==
- google-site-verification=N0xKl47CxGMFe-q0fmD9dt0x98EhY8swt96gj6YU48M
- SPFv=spf1 mx ip4:52.221.47.157 ip4:202.128.227.147 ip4:202.128.231.147 ip4:202.128.230.147 ip4:202.64.158.2 ip4:203.80.0.5 include:spf.protection.outlook.com -all
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