Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
felixherzog.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 07:31:24 UTC · ↺ Refresh
MX Hostnames
- smtpin.rzone.de
MX Priorities
- smtpin.rzone.de: 5
A / AAAA Records
- 85.215.233.188 ↩ ip85-215-233-188.pbiaas.com
Mail Server IPs
- 81.169.145.97 ↩ smtpin.rzone.de
- 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de
SOA Record
Raw SOA
coby.ns.cloudflare.com dns.cloudflare.com 2400156110 10000 2400 604800 1800
Primary NS (mname)
coby.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400156110
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
coby.ns.cloudflare.com
lady.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:81.169.146.128/25 ip4:85.215.255.0/24 ip6:2a01:238:20a:202::0/64 ip6:2a01:238:400::0/48 ip4:81.169.144.153 ip6:2a01:238:20a:202:50ff::153 ip4:157.90.15.114 ip4:157.90.15.111 a -all
📊 DNS lookups: 1/10
✓ 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
2 records- SPFv=spf1 ip4:81.169.146.128/25 ip4:85.215.255.0/24 ip6:2a01:238:20a:202::0/64 ip6:2a01:238:400::0/48 ip4:81.169.144.153 ip6:2a01:238:20a:202:50ff::153 ip4:157.90.15.114 ip4:157.90.15.111 a -all
- openai-domain-verification=dv-qiRsYUpwpD939Gr7f6SNNZQ6
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