Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ktf-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 15:24:47 UTC · ↺ Refresh
MX Hostnames
- mx1.rb-com.de
- viruswall.rb-com.de
- mx2.rb-com.de
MX Priorities
- viruswall.rb-com.de: 10
- mx1.rb-com.de: 30
- mx2.rb-com.de: 20
A / AAAA Records
- 195.243.160.69 ↩ ktf-gmbh.de
Mail Server IPs
- 195.243.160.14 ↩ viruswall.rb-com.de
- 2003:43:4015::14 ↩ viruswall.rb-com.de
- 195.243.160.15 ↩ mx1.rb-com.de
- 2003:43:4015::15 ↩ mx1.rb-com.de
- 195.243.160.17 ↩ mx2.rb-com.de
- 2003:43:4015::17 ↩ mx2.rb-com.de
SOA Record
Raw SOA
dns.rb-com.de admin.rbcom.de 2026040402 86400 10800 1209600 86400
Primary NS (mname)
dns.rb-com.de
Admin Email (rname)
admin@rbcom.de
Serial
2026040402
Refresh
86400s
Retry
10800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns.rb-com.de
frigg.domainsystem.info
thor.domainsystem.info
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 mx ~all
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