zehnder-systems.de

Valid Email Server
Domain Lookup › zehnder-systems.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zehnder-systems.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-06 23:37:16 UTC · ↺ Refresh

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MX Hostnames

  • zehndersystems-de01i.mail.protection.outlook.com

MX Priorities

  • zehndersystems-de01i.mail.protection.outlook.com: 10

A / AAAA Records

  • 3.166.96.27 ↩ server-3-166-96-27.mci50.r.cloudfront.net
  • 3.166.96.24 ↩ server-3-166-96-24.mci50.r.cloudfront.net
  • 3.166.96.32
  • 3.166.96.55
  • 2600:9000:2798:4400:9:4467:6340:93a1
  • 2600:9000:2798:2400:9:4467:6340:93a1
  • 2600:9000:2798:6600:9:4467:6340:93a1
  • 2600:9000:2798:d400:9:4467:6340:93a1
  • 2600:9000:2798:b800:9:4467:6340:93a1
  • 2600:9000:2798:a800:9:4467:6340:93a1
  • 2600:9000:2798:6e00:9:4467:6340:93a1
  • 2600:9000:2798:ec00:9:4467:6340:93a1

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:ca48::8 ↩ mail-miypr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns9.managed-ip.com domainadmin.managed-ip.com 2025120827 43200 7200 1209600 300
Primary NS (mname)
ns9.managed-ip.com
Admin Email (rname)
domainadmin@managed-ip.com
Serial
2025120827
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns12.managed-ip.info
ns9.managed-ip.com
ns11.managed-ip.info
ns10.managed-ip.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_u.zehnder-systems.de._spf.dmarclc.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

DKIM Selectors

✓ 11 found
google._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

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 include:_u.zehnder-systems.de._spf.dmarclc.com -all
  • _gbrbxdicv51f8p8w4w5qgcnlt86i189
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