Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
reissner-ernst.de
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 00:46:07 UTC · ↺ Refresh
MX Hostnames
- d309525.a.ess.de.barracudanetworks.com
- d309525.b.ess.de.barracudanetworks.com
MX Priorities
- d309525.a.ess.de.barracudanetworks.com: 10
- d309525.b.ess.de.barracudanetworks.com: 20
A / AAAA Records
- 81.169.145.90 ↩ w8a.rzone.de
- 2a01:238:20a:202:1090:: ↩ w8a.rzone.de
Mail Server IPs
- 18.185.115.252 ↩ mail.ess.de.barracuda.com
- 18.185.115.251 ↩ mail.ess.de.barracuda.com
- 18.185.115.250 ↩ mail.ess.de.barracuda.com
SOA Record
Raw SOA
docks10.rzone.de hostmaster.strato-rz.de 2020051405 86400 7200 604800 300
Primary NS (mname)
docks10.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051405
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks10.rzone.de
shades01.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -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
✗ 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
3 records- MS=ms55050351
- include:spf.ess.de.barracudanetworks.com
- SPFv=spf1 include:spf.protection.outlook.com -all
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