zirkelbach.com

Valid Email Server
Domain Lookup › zirkelbach.com

Domain Overview

DNS: ✓ 16d ago Checker: ✓ 16d ago
zirkelbach.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-08-18 14:39:09 UTC · ↺ Refresh

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MX Hostnames

  • zirkelbach-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.143.9.210 (no PTR)
  • 167.71.84.208 ↩ 1516192.cloudwaysapps.com

Mail Server IPs

  • 52.101.41.122 ↩ mail-byapr02cu00302.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns0.directnic.com hostmaster.directnic.com 2013112909 28800 14400 604800 600
Primary NS (mname)
ns0.directnic.com
Admin Email (rname)
hostmaster@directnic.com
Serial
2013112909
Refresh
28800s
Retry
14400s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns0.directnic.com
ns1.directnic.com
ns2.directnic.com
ns3.directnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=r;aspf=r;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms18147415
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