Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marathon-re.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 07:34:12 UTC · ↺ Refresh
MX Hostnames
- marathonre-de02b.mail.protection.outlook.com
MX Priorities
- marathonre-de02b.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.47 ↩ 217-160-0-47.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::28c ↩ 2001-08d8-100f-f000-0000-0000-0000-028c.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.udag.de hostmaster.united-domains.de 2024123271 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024123271
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.udag.de
ns.udag.org
ns.udag.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ 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- atlassian-domain-verification=NHujdeIwEHLisrAUIpGbctK1Ar9jPVYBElQD4LpRgjb06CE8ecCDkrHZRqAKVrLK
- SPFv=spf1 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf-de.emailsignatures365.com -all
- B7T F8R M2L
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