Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sternquell.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 15:12:46 UTC · ↺ Refresh
MX Hostnames
- sternquell-de.mail.protection.outlook.com
MX Priorities
- sternquell-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.145.99.26 ↩ ku5.tmt.de
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.tmt.de hostmaster.ns0.tmt.de 2024070906 28800 7200 604800 3600
Primary NS (mname)
ns0.tmt.de
Admin Email (rname)
hostmaster@ns0.tmt.de
Serial
2024070906
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns0.tmt.de
ns4.tmt.de
ns5.tmt.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:_spf.symbiose.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
4 records- WTRtFU1UPmbRoJuVEv63mFigciUNWA3XAzMpvcW/FFRUkA/cPwNNTRTcIhb/YF2WsUaQhqjZ30CNSrQt3LQdcg==
- MS=ms12664705
- SPFv=spf1 a mx include:_spf.symbiose.com include:spf.protection.outlook.com -all
- FRUSCQ3djScQs73GFMdSFqbjBJ1bSJnQYxOiOBTPDcza3lqUagnTjyKB+tbrypEJhjiN+ev7WtjGyP/bgvxd7w==
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