Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
queerreferat-aachen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 06:44:48 UTC · ↺ Refresh
MX Hostnames
- mx1.rz.rwth-aachen.de
MX Priorities
- mx1.rz.rwth-aachen.de: 10
A / AAAA Records
- 88.99.58.166 ↩ static.166.58.99.88.clients.your-server.de
- 2a01:4f8:10a:ae9::2 (no PTR)
Mail Server IPs
- 137.226.78.57 ↩ mx1.rz.rwth-aachen.de
SOA Record
Raw SOA
helium.ns.hetzner.de webmaster.queerreferat-aachen.de 2025120206 14400 600 604800 900
Primary NS (mname)
helium.ns.hetzner.de
Admin Email (rname)
webmaster@queerreferat-aachen.de
Serial
2025120206
Refresh
14400s
Retry
600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.itc.rwth-aachen.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 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 include:_spf.itc.rwth-aachen.de -all
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