Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gantzert-zahntechnik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 19:17:27 UTC · ↺ Refresh
MX Hostnames
- mail1.dss-net.de
MX Priorities
- mail1.dss-net.de: 0
A / AAAA Records
- 45.55.126.223 (no PTR)
Mail Server IPs
- 176.31.51.195 ↩ mail1.dss-net.de
SOA Record
Raw SOA
ns1.dss-net.de hostmaster.digitalservicesstephan.de 2025083102 10800 3600 604800 3600
Primary NS (mname)
ns1.dss-net.de
Admin Email (rname)
hostmaster@digitalservicesstephan.de
Serial
2025083102
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.dss-net.de
ns1.dss-net.de
SPF Record
✓ Strict (-all)
v=spf1 a:mailgateway.dss-net.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 a:mailgateway.dss-net.de -all
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