Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dubnitzky.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 23:48:11 UTC · ↺ Refresh
MX Hostnames
- 71af2d9f.23.ik2.eu
- 71af2d9f.21.ik2.com
- 71af2d9f.22.ik2.io
MX Priorities
- 71af2d9f.21.ik2.com: 10
- 71af2d9f.23.ik2.eu: 30
- 71af2d9f.22.ik2.io: 20
A / AAAA Records
- 78.46.85.5 ↩ server5.consult-n.de
Mail Server IPs
- 64.38.239.83 ↩ s480d.ik2.com
- 38.246.57.230 ↩ s602e.ik2.com
- 207.81.189.178 ↩ s250a.ik2.com
- 66.228.130.220 ↩ s214b.ik2.com
- 66.228.130.218 (no PTR)
- 64.38.239.82 ↩ s480c.ik2.com
- 38.246.57.226 ↩ s602a.ik2.com
SOA Record
Raw SOA
dns1.nsdns.info tech.key-systems.net 2023061310 10800 3600 604800 28800
Primary NS (mname)
dns1.nsdns.info
Admin Email (rname)
tech@key-systems.net
Serial
2023061310
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
dns1.nsdns.info
dns3.nsdns.info
dns2.nsdns.info
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- mMiLtTpa15_XCzUHx7cx69H22bh06gSYRmJLi5h3imE
- SPFv=spf1 a mx -all
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