Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
steuernkoeln.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 01:28:04 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx04.hornetsecurity.com: 40
- mx03.hornetsecurity.com: 30
- mx01.hornetsecurity.com: 10
A / AAAA Records
- 176.52.242.11 ↩ r3436.agenturserver.it
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
SOA Record
Raw SOA
ns1094.ui-dns.com hostmaster.1und1.com 2017060122 28800 7200 604800 600
Primary NS (mname)
ns1094.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060122
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1110.ui-dns.biz
ns1094.ui-dns.com
ns1090.ui-dns.de
ns1050.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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
1 record- SPFv=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com ~all
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