Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
b2bpartner.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 01:10:35 UTC · ↺ Refresh
MX Hostnames
- b2bpartner-de.mail.protection.outlook.com
MX Priorities
- b2bpartner-de.mail.protection.outlook.com: 0
A / AAAA Records
- 104.20.19.108 (no PTR)
- 172.66.167.133 (no PTR)
- 2606:4700:10::6814:136c
- 2606:4700:10::ac42:a785
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
eoin.ns.cloudflare.com dns.cloudflare.com 2400379602 10000 2400 604800 1800
Primary NS (mname)
eoin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400379602
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
izabella.ns.cloudflare.com
eoin.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:81.91.210.234/30 ip4:217.16.180.44/30 ip4:37.46.83.91 include:sparkpostmail.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
4 records- facebook-domain-verification=5o2t10zrgzbexmwvi7fryl7opdqhu2
- google-site-verification=jfEDI4epkRifVYDSa7jr6K_ml31n9P75YET1dlkSkds
- SPFv=spf1 include:spf.protection.outlook.com ip4:81.91.210.234/30 ip4:217.16.180.44/30 ip4:37.46.83.91 include:sparkpostmail.com ~all
- MS=ms21366028
Full email verification for b2bpartner.de
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