koppenexecutive.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
koppenexecutive.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-23 09:58:25 UTC · ↺ Refresh

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MX Hostnames

  • koppenexecutive-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 172.67.198.20 (no PTR)
  • 104.21.52.104 (no PTR)
  • 2606:4700:3034::6815:3468
  • 2606:4700:3030::ac43:c614

Mail Server IPs

  • 52.101.103.162 ↩ mail-miypr03cu00202.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.103.143 ↩ mail-miypr03cu00107.inbound.protection.outlook.com
  • 52.101.91.162 ↩ mail-matpr04cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::26 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA nick.ns.cloudflare.com dns.cloudflare.com 2414490804 10000 2400 604800 1800
Primary NS (mname)
nick.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2414490804
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ziggy.ns.cloudflare.com
nick.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com ip4:45.130.18.118 ip6:2a12:d282:104:70:: -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 a mx include:spf.protection.outlook.com ip4:45.130.18.118 ip6:2a12:d282:104:70:: -all
  • google-site-verification=ZO9tiSWSNK8efEdljeM_7InSGvhhkq5r9R4vzpeENHY
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