Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nxstar.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 10:59:59 UTC · ↺ Refresh
MX Hostnames
- argus.excelsiur.de
MX Priorities
- argus.excelsiur.de: 10
A / AAAA Records
- 217.160.166.51 ↩ argus.excelsiur.de
Mail Server IPs
- 217.160.166.51 ↩ argus.excelsiur.de
- 2001:8d8:966:1d00::1c:cf34 ↩ argus.excelsiur.de
SOA Record
Raw SOA
nsa3.schlundtech.de alexander\.hoehne.gmail.com 2024051300 43200 7200 1209600 86400
Primary NS (mname)
nsa3.schlundtech.de
Admin Email (rname)
alexander\@hoehne.gmail.com
Serial
2024051300
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsd3.schlundtech.de
nsa3.schlundtech.de
nsb3.schlundtech.de
nsc3.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:argus.excelsiur.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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
1 record- SPFv=spf1 +a +mx +a:argus.excelsiur.de -all
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