Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
voltbox.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 14:28:11 UTC · ↺ Refresh
MX Hostnames
- mx14c.antispameurope.com
- mx14b.antispameurope.com
- mx14a.antispameurope.com
- mx14d.antispameurope.com
MX Priorities
- mx14d.antispameurope.com: 40
- mx14b.antispameurope.com: 20
- mx14c.antispameurope.com: 30
- mx14a.antispameurope.com: 10
A / AAAA Records
- 23.88.90.38 ↩ dedi6765.your-server.de
- 2a01:4f8:d0a:7607::2 ↩ dedi6765.your-server.de
Mail Server IPs
- 94.100.132.100 ↩ hsmx01.antispameurope.com
- 83.246.65.85 ↩ hsmx01-hz2.antispameurope.com
- 94.100.134.100 ↩ nlb01-hz3.hornetsecurity.com
- 83.246.65.100 ↩ nlb01-hz2.hornetsecurity.com.65.246.83.in-addr.arpa
SOA Record
Raw SOA
ns1.portformance.com hostmaster.portformance.de 2024060701 43200 7200 1209600 300
Primary NS (mname)
ns1.portformance.com
Admin Email (rname)
hostmaster@portformance.de
Serial
2024060701
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.portformance.com
ns1.portformance.com
ns4.portformance.com
ns3.portformance.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.95.36.6 ip4:217.160.41.143 ip4:212.227.126.131 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ 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
1 record- SPFv=spf1 ip4:213.95.36.6 ip4:217.160.41.143 ip4:212.227.126.131 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
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