Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
business-code.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 06:14:15 UTC · ↺ Refresh
MX Hostnames
- businesscode-de02b.mail.protection.outlook.com
MX Priorities
- businesscode-de02b.mail.protection.outlook.com: 10
A / AAAA Records
- 178.104.101.164 ↩ static.164.101.104.178.clients.your-server.de
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.cloudns.net rico.business-code.de 2026032702 7200 1800 1209600 3600
Primary NS (mname)
ns1.cloudns.net
Admin Email (rname)
rico@business-code.de
Serial
2026032702
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.cloudns.net
ns2.cloudns.net
ns3.cloudns.net
ns4.cloudns.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:217.76.105.200 include:spf.protection.outlook.com include:_spf.atlassian.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- atlassian-domain-verification=p4acFSdQOKwzBtkSMv8Jwu13DpI5ayfwRQQFzMCu4dTg9RargpTJjBmuFZEyuxy8
- SPFv=spf1 ip4:217.76.105.200 include:spf.protection.outlook.com include:_spf.atlassian.net -all
- atlassian-sending-domain-verification=b2704e05-f02b-41d4-920e-af2f5d81a334
Full email verification for business-code.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits