nbb-netzgesellschaft.de

Valid Email Server
Domain Lookup › nbb-netzgesellschaft.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
nbb-netzgesellschaft.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 06:53:35 UTC · ↺ Refresh

MX Hostnames

  • nbbnetzgesellschaft-de0i.mail.protection.outlook.com

MX Priorities

  • nbbnetzgesellschaft-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 13.94.211.68 (no PTR)

Mail Server IPs

  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1-02.azure-dns.com azuredns-hostmaster.microsoft.com 1553253771 3600 300 2419200 300
Primary NS (mname)
ns1-02.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1553253771
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns4-02.azure-dns.info
ns1-02.azure-dns.com
ns2-02.azure-dns.net
ns3-02.azure-dns.org

SPF Record

✓ Strict (-all)
v=spf1 include:_spf1.gasag.de include:_spf2.gasag.de include:_spf3.gasag.de include:_spf4.gasag.de include:spf.protection.outlook.com include:spf.mailjet.com include:spf.crsend.com include:_spf.ntgt.de -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

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

All TXT Records

8 records
  • 4bbfcCWxmLNnVqbjaAnC7coTH9LFHHkNP/4NReCGGHV3ByeAU1rnHbGFI4k5MOuOBgK3+IAigI0OGXX2sSPTsw==
  • MS=ms87213053
  • SPFv=spf1 include:_spf1.gasag.de include:_spf2.gasag.de include:_spf3.gasag.de include:_spf4.gasag.de include:spf.protection.outlook.com include:spf.mailjet.com include:spf.crsend.com include:_spf.ntgt.de -all
  • docusign=ac6eb726-a51f-409a-b2f2-e838f4e1fba9
  • google-site-verification=wmYvPOPbr57MfbPMoMaoWoki1RsmpAvGXIVkDvRQOVY
  • apple-domain-verification=FPfNXCRWxvyNGAzg
  • google-site-verification=D81pAuLyIDU_JmU7FN8fCe-vw1CXPIa2NzVMfbVkTzY
  • nintex.6793476c4463a3cc3432359e
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