kcrc.com

Valid Email Server
Domain Lookup › kcrc.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
kcrc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 22:36:45 UTC · ↺ Refresh

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MX Hostnames

  • alt3.ap.email.fireeyecloud.com
  • kcrc-com.mail.protection.outlook.com
  • alt1.ap.email.fireeyecloud.com
  • primary.ap.email.fireeyecloud.com
  • alt2.ap.email.fireeyecloud.com

MX Priorities

  • kcrc-com.mail.protection.outlook.com: 90
  • alt3.ap.email.fireeyecloud.com: 40
  • alt2.ap.email.fireeyecloud.com: 30
  • primary.ap.email.fireeyecloud.com: 10
  • alt1.ap.email.fireeyecloud.com: 20

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:cc09:: ↩ mail-sg2pr03cu00500.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
  • 3.112.99.1 ↩ mx.ap.email.fireeyecloud.com
  • 3.112.99.0 ↩ mx.ap.email.fireeyecloud.com
  • 3.112.99.2 ↩ mx.ap.email.fireeyecloud.com

SOA Record

Raw SOA a11-64.akam.net hostmaster.mtr.com.hk 2023042514 1200 1000 5000000 10800
Primary NS (mname)
a11-64.akam.net
Admin Email (rname)
hostmaster@mtr.com.hk
Serial
2023042514
Refresh
1200s
Retry
1000s
Expire
5000000s
Minimum TTL
10800s

Nameservers (NS)

a1-227.akam.net
a11-64.akam.net
a6-64.akam.net
a5-67.akam.net
a14-65.akam.net
a4-66.akam.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:kcrc.com.hk include:_spf.fireeyecloud.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

4 records
  • SPFv=spf1 include:kcrc.com.hk include:_spf.fireeyecloud.com include:spf.protection.outlook.com ~all
  • MS=ms19963582
  • _0nl1ivkz6p574t2mob9tqdxbpjupcet
  • _luu83iyzzdbbbwg7o7n8yf28e0isnbd
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