Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linnenbecker.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 06:50:39 UTC · ↺ Refresh
MX Hostnames
- linnenbecker-de.mail.protection.outlook.com
MX Priorities
- linnenbecker-de.mail.protection.outlook.com: 10
A / AAAA Records
- 72.144.109.176 (no PTR)
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.ns-serve.net root.ns1.ns-serve.net 1752832069 10800 3600 604800 3600
Primary NS (mname)
ns1.ns-serve.net
Admin Email (rname)
root@ns1.ns-serve.net
Serial
1752832069
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.ns-serve.net
ns2.ns-serve.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a:mailbak.linnenbecker.de a:mailgateway.fglin.de a:sma.lbx.cloud ip4:213.172.109.50 ip4:92.51.165.15 include:spf.nl2go.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict 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: 216 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
11 records- logmein-verification-code=f4b4018f-a2a7-4e2d-acdd-0b6a651ad2de
- dBZwueJwKZ9B2llFbMM1ptnyMTMJhqC4lQu9C51xeGBZrcoKMdoGVfLdptVx2pMalHmN42tiVudI9iziCvWBFg==
- ms-domain-verification=ffeef2b1-0bc4-4d93-ab39-a3314462b248
- 3vvwnwIYnJal2hnQUILpbnz097La1dh3StZkqv1Fz/6pDI2AUOg5e1EIBVCZ/+gh8wC+SjUA699yd3uLR4PKwA==
- SPFv=spf1 include:spf.protection.outlook.com a:mailbak.linnenbecker.de a:mailgateway.fglin.de a:sma.lbx.cloud ip4:213.172.109.50 ip4:92.51.165.15 include:spf.nl2go.com -all
- apple-domain-verification=JjawRT7ycTAPc8pN
- MS=ms54528902
- amazon-business-verification=0de09b271085c617dd0c8c69680326b03eab21fa306ba85f8e36150339aa6ec0
- asv=779bc0968212500f1c14d78cd5af3697
- brevo-code:6e3beb18ccca7f606b9778424d334b8d
- 201811231438170b3vhlufuzsgygsdispsro6tfbmexqei0eaa75qzeb6q31a1cx
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