ostseemakler.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ostseemakler.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 21:58:41 UTC · ↺ Refresh

MX Hostnames

  • ostseemakler-de.mail.protection.outlook.com

MX Priorities

  • ostseemakler-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 213.239.241.84 ↩ host27.networkinvest.de
  • 2a01:4f8:a0:51d3::7 (no PTR)

Mail Server IPs

  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.networkinvest.net support.networkinvest.de 2025112100 39940 14400 604800 43200
Primary NS (mname)
ns1.networkinvest.net
Admin Email (rname)
support@networkinvest.de
Serial
2025112100
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
43200s

Nameservers (NS)

ns1.networkinvest.net
ns3.networkinvest.net
ns2.networkinvest.net
ns4.networkinvest.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms91884274
  • google-site-verification=o-uNEyXv7AluPKm3aLWRntjjpLxOuYgCD5vj3BcY0Vg
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