Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
strukturia.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 16:27:48 UTC · ↺ Refresh
MX Hostnames
- strukturia-de.mail.protection.outlook.com
MX Priorities
- strukturia-de.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.71 ↩ w07.rzone.de
- 2a01:238:20a:202:1071:: ↩ w07.rzone.de
Mail Server IPs
- 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
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.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
SOA Record
Raw SOA
docks16.rzone.de hostmaster.strato-rz.de 2023081474 86400 7200 604800 300
Primary NS (mname)
docks16.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2023081474
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks16.rzone.de
shades08.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=I8ANT7Y7Ju-Waa52zq4QzdeE-IOgQF9MvlUZ10VeCoo
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms36729659
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