steuerkonzepte.com

Valid Email Server
Domain Lookup › steuerkonzepte.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
steuerkonzepte.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 10:23:48 UTC · ↺ Refresh

MX Hostnames

  • mx02.hornetsecurity.com
  • mx03.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx04.hornetsecurity.com

MX Priorities

  • mx02.hornetsecurity.com: 20
  • mx03.hornetsecurity.com: 30
  • mx04.hornetsecurity.com: 40
  • mx01.hornetsecurity.com: 10

A / AAAA Records

  • 5.22.145.16 ↩ relay.mail-forwarder.io
  • 5.22.145.121 ↩ relay.mail-forwarder.io
  • 2a00:18e0:5:3:dfe2:c743:85aa:61bc ↩ relay.mail-forwarder.io
  • 2a00:18e0:5:2:7577:4e4d:413b:f507 ↩ relay.mail-forwarder.io

Mail Server IPs

  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com

SOA Record

Raw SOA ns1.domaindiscount24.net tech.key-systems.net 2026021201 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2026021201
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns2.domaindiscount24.net
ns3.domaindiscount24.net
ns1.domaindiscount24.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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 include:spf.hornetsecurity.com -all
  • one-time-verification=31fa08c5-5017-4929-bdd0-2085aa429732
  • MS=ms57341918
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