Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
voltmaster.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 11:48:51 UTC · ↺ Refresh
MX Hostnames
- mail.bm-mailer.de
MX Priorities
- mail.bm-mailer.de: 10
A / AAAA Records
- 49.12.13.54 ↩ www.voltmaster.de
Mail Server IPs
- 176.9.10.249 ↩ mail.bm-mailer.de
- 2a01:4f8:141:53dc::2 ↩ mail.bm-mailer.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026030710 14400 1800 604800 3600
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026030710
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx -all
- google-site-verification=rnRZz2PDRBhfj7nHMC51yn_Nl2xG9LaCv16n3_lR4ts
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