kornerstone.com

Valid Email Server
Domain Lookup › kornerstone.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kornerstone.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 08:41:34 UTC · ↺ Refresh

MX Hostnames

  • kornerstone-com.mail.protection.outlook.com

MX Priorities

  • kornerstone-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.165.55 (no PTR)
  • 104.21.81.215 (no PTR)
  • 2606:4700:3033::6815:51d7 (no PTR)
  • 2606:4700:3035::ac43:a537 (no PTR)

Mail Server IPs

  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 52.101.137.0 ↩ 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
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA tom.ns.cloudflare.com dns.cloudflare.com 2396970103 10000 2400 604800 1800
Primary NS (mname)
tom.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396970103
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

tricia.ns.cloudflare.com
tom.ns.cloudflare.com

SPF Record

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

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

3 records
  • MS=ms44813862
  • _globalsign-domain-verification=0IgRF2fgqSsFCcjQj6L8OUKI0bkdxfcQNehR05oId1
  • SPFv=spf1 include:udomain.spf.net.hk include:sg.rimanggis.com include:spf.protection.outlook.com ~all
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