Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
corkensteel.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 09:11:19 UTC · ↺ Refresh
MX Hostnames
- corkensteel-com.mail.protection.outlook.com
MX Priorities
- corkensteel-com.mail.protection.outlook.com: 1
A / AAAA Records
- 172.67.179.200 (no PTR)
- 104.21.72.95 (no PTR)
- 2606:4700:3031::ac43:b3c8
- 2606:4700:3030::6815:485f
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
amy.ns.cloudflare.com dns.cloudflare.com 2399854200 10000 2400 604800 1800
Primary NS (mname)
amy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399854200
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
amy.ns.cloudflare.com
matt.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:billtrust.com include:_spf.mlsend.com ip4:67.227.193.163 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100; fo=1; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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
4 records- google-site-verification=umS3-lARtOKE6Dpl1P2A097gLGGlA5Exe8fg63BfI6s
- mailerlite-domain-verification=7ea92601973aa62707334cdb08c2de33bc2520df
- SPFv=spf1 include:spf.protection.outlook.com include:billtrust.com include:_spf.mlsend.com ip4:67.227.193.163 -all
- google-site-verification=7JWTBKev_AtTfpnR7GAdzf8G-j10KPBERoiCL2U44nc
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