Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
friemann-wolf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 14:46:03 UTC · ↺ Refresh
MX Hostnames
- mxd.nitropower.com
MX Priorities
- mxd.nitropower.com: 0
A / AAAA Records
- 195.114.11.132 (no PTR)
- 2001:67c:6fc::1:700 (no PTR)
Mail Server IPs
- 198.73.51.238 ↩ mxd.nitropower.com
SOA Record
Raw SOA
ns1.opportunity.de administrator.opportunity.de 2025042515 43200 1800 1209600 600
Primary NS (mname)
ns1.opportunity.de
Admin Email (rname)
administrator@opportunity.de
Serial
2025042515
Refresh
43200s
Retry
1800s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns3.opportunity.de
ns2.opportunity.de
ns1.opportunity.de
SPF Record
✓ Strict (-all)
v=spf1 a:mxvs.nitropower.com mx include:spf.protection.outlook.com include:nitropower.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
2 records- SPFv=spf1 a:mxvs.nitropower.com mx include:spf.protection.outlook.com include:nitropower.com -all
- MS=ms88980125
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