Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bertram-productions.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 11:37:00 UTC · ↺ Refresh
MX Hostnames
- express.zustellzentrum.de
MX Priorities
- express.zustellzentrum.de: 10
A / AAAA Records
- 173.212.249.81 ↩ heide.hostloom.de
- 2a02:c207:3003:7974::1 ↩ heide.hostloom.de
Mail Server IPs
- 173.212.237.201 ↩ express.zustellzentrum.de
- 2a02:c207:3002:6790::1 ↩ express.zustellzentrum.de
SOA Record
Raw SOA
ns1.domaindiscount24.net tech.key-systems.net 2024021205 10800 3600 604800 3600
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2024021205
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns3.nsdns.info
dns2.nsdns.info
dns1.nsdns.info
SPF Record
✓ Soft Fail (~all)
v=spf1 a:express.zustellzentrum.de ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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 a:express.zustellzentrum.de ?all
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