Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linster.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 01:33:31 UTC · ↺ Refresh
MX Hostnames
- linster-de.mail.protection.outlook.com
MX Priorities
- linster-de.mail.protection.outlook.com: 10
A / AAAA Records
- 212.223.26.38 ↩ linux18.unixserver.org
- 2a02:708::167:0:0:0:2 ↩ linux18.unixserver.org
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
SOA Record
Raw SOA
ns12.nameserver.de dnsmaster.ns12.nameserver.de 2026032701 10000 1800 604800 3600
Primary NS (mname)
ns12.nameserver.de
Admin Email (rname)
dnsmaster@ns12.nameserver.de
Serial
2026032701
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns11.nameserver.de
ns12.nameserver.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.DE.exclaimer.net -all
📊 DNS lookups: 2/10
✓ 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
5 records- Foxit-domain-verification=1580e152d9dd37eeaad2911097a88489
- MS=ms36177704
- SPFv=spf1 include:spf.protection.outlook.com include:spf.DE.exclaimer.net -all
- MS=BF4E0762C1BE94AD5AB8CB8CECCA61E0298C7B5B
- apple-domain-verification=X5AS37CRNWOI8D28
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