Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wb-duisburg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 01:41:08 UTC · ↺ Refresh
MX Hostnames
- wbduisburg-de0e.mail.protection.outlook.com
MX Priorities
- wbduisburg-de0e.mail.protection.outlook.com: 0
A / AAAA Records
- 147.28.52.173 (no PTR)
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.kuhlma-it.de do-not-reply.wb-duisburg.de 2026033103 43200 7200 1209600 86400
Primary NS (mname)
ns1.kuhlma-it.de
Admin Email (rname)
do-not-reply@wb-duisburg.de
Serial
2026033103
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.kuhlma-it.de
ns1.kuhlma-it.de
ns4.kuhlma-it.de
ns2.kuhlma-it.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:185.155.191.5 ip4:185.155.191.6 ip4:185.155.188.146 ip4:185.155.188.138 include:spf.de.umantis.com include:agenturserver.de include:spf.terminland.de include:spf.profiprint.de include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 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
7 records- 174b4af9eb2258c3a68637911ecd8b005c5e12a938ffee015a
- atlassian-sending-domain-verification=c4a33570-9c5c-4021-a1d3-6b7351bb5034
- SPFv=spf1 ip4:185.155.191.5 ip4:185.155.191.6 ip4:185.155.188.146 ip4:185.155.188.138 include:spf.de.umantis.com include:agenturserver.de include:spf.terminland.de include:spf.profiprint.de include:spf.protection.outlook.com -all
- atlassian-domain-verification=q4wpCAPovxoatbCYCzRTls7e1FScjs/C3XSorTjIVrOl16dlttwNyS0htHOvNqoF
- MS=ms58901383
- gNNq2v+YKqA1A2dUAhQTDIOCqu3Zh6OaiBYMERHo/UqlEZlrbfqKjQur8DJrbc6d81C6sbDY55193XcGXb5Tqg==
- apple-domain-verification=7wPQp3PKv0ln02sh
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