Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lehmbaugruppe.de
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 19:38:49 UTC · ↺ Refresh
MX Hostnames
- d303446.a.ess.de.barracudanetworks.com
- d303446.b.ess.de.barracudanetworks.com
MX Priorities
- d303446.b.ess.de.barracudanetworks.com: 10
- d303446.a.ess.de.barracudanetworks.com: 20
A / AAAA Records
- 81.169.145.94 ↩ w8e.rzone.de
- 2a01:238:20a:202:1094:: ↩ w8e.rzone.de
Mail Server IPs
- 18.185.115.250 ↩ mail.ess.de.barracuda.com
- 18.185.115.251 ↩ mail.ess.de.barracuda.com
- 18.185.115.252 ↩ mail.ess.de.barracuda.com
SOA Record
Raw SOA
shades19.rzone.de hostmaster.strato-rz.de 2022013032 86400 7200 604800 300
Primary NS (mname)
shades19.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2022013032
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades19.rzone.de
docks16.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:212.184.185.58 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 4/10
✓ 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ip4:212.184.185.58 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
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