nbb.dbb.de

Valid Email Server
Domain Lookup › nbb.dbb.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
nbb.dbb.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 11:34:45 UTC · ↺ Refresh

MX Hostnames

  • nbb-dbb-de.mail.protection.outlook.com

MX Priorities

  • nbb-dbb-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 62.50.112.203 ↩ revproxy03.lf.net

Mail Server IPs

  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.mail.lf.net ip4:217.91.44.200 ip6:2a05:8b81:1000:2::4a28:3b83 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

2 records
  • MS=ms98498201
  • SPFv=spf1 mx include:spf.mail.lf.net ip4:217.91.44.200 ip6:2a05:8b81:1000:2::4a28:3b83 include:spf.protection.outlook.com -all
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