Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zuern.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 17:15:31 UTC · ↺ Refresh
MX Hostnames
- zuern-de.mail.protection.outlook.com
MX Priorities
- zuern-de.mail.protection.outlook.com: 10
A / AAAA Records
- 79.133.54.126 ↩ bs01.de-fra1.unlimitedhosting.de
- 2a01:7e0::277:0:0:150:126 ↩ bs01.de-fra1.unlimitedhosting.de
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
docks01.rzone.de hostmaster.strato-rz.de 2023052004 86400 7200 604800 300
Primary NS (mname)
docks01.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2023052004
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks01.rzone.de
shades14.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; adkim=s; sp=reject; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
3 records- apple-domain-verification=T9zPhOJDGj5pS2bc
- SPFv=spf1 mx a include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
- MS=1FB9544A4EA9CEA36FB8AEBD13F28AF26070586F
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