hktb.com

Valid Email Server
Domain Lookup › hktb.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hktb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 08:51:25 UTC · ↺ Refresh

MX Hostnames

  • hktb-com.mail.protection.outlook.com

MX Priorities

  • hktb-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 104.18.22.27 (no PTR)
  • 104.18.23.27 (no PTR)
  • 2606:4700::6812:171b (no PTR)
  • 2606:4700::6812:161b (no PTR)

Mail Server IPs

  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 52.101.157.80 ↩ mail-os8pr02cu00100.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:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA noor.ns.cloudflare.com dns.cloudflare.com 2399721715 10000 2400 604800 1800
Primary NS (mname)
noor.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399721715
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

noor.ns.cloudflare.com
sonny.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:mrelay3.hktb.com include:sent-via.netsuite.com include:spf.protection.outlook.com include:emaileuc.freshservice.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

11 records
  • smartsheet-site-validation=jvzxLCRMYqQCSYhMstxX1IYU5MFH_bU2
  • SPFv=spf1 include:mrelay3.hktb.com include:sent-via.netsuite.com include:spf.protection.outlook.com include:emaileuc.freshservice.com -all
  • BPL=1700227
  • ZOOM_verify_Z1XBcLAvQ5YSHHBJT6JPyI
  • adobe-idp-site-verification=0faadabc1206161173af3a80bae24c8cc23782af47d8d52ac3113ed1244d315f
  • amazonses:KnWQcdx10NJZ4DTxXq+dHulDvIOMxliUwoJnCeDBXfw=
  • atlassian-domain-verification=SfHY9pvd4SqwtSOSxoSa30z3lTBaccjZqIyYRBehEFLaIjLaIZtuedK2YPLPDcWM
  • cisco-ci-domain-verification=7e80a2be1e2f982ee4557deced7525bdc610df224daa301c2959fa40a7a68421
  • google-site-verification=Lm7oIgmxBAsDl39QMRyEUaCXyIt1k0SW2-784DN_0K0
  • p1q02o4vba7e7idsa26mf1qtbu
  • postman-domain-verification=883d6041f3958ad362e7e9426b448dbc0fb29b923522cbb31f644b1a48b16567763755f68f8b5d7eb97e9b34597306907f6f9ed9d3042eb351c3b0f00f00f344
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