Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ruethnick.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 18:21:00 UTC · ↺ Refresh
MX Hostnames
- d328412.a.ess.de.barracudanetworks.com
- d328412.b.ess.de.barracudanetworks.com
MX Priorities
- d328412.b.ess.de.barracudanetworks.com: 20
- d328412.a.ess.de.barracudanetworks.com: 10
A / AAAA Records
- 217.160.0.34 ↩ 217-160-0-34.elastic-ssl.ui-r.com
Mail Server IPs
- 18.185.115.252 ↩ mail.ess.de.barracuda.com
- 18.185.115.250 ↩ mail.ess.de.barracuda.com
- 18.185.115.251 ↩ mail.ess.de.barracuda.com
SOA Record
Raw SOA
ns1120.ui-dns.org hostmaster.1und1.de 2017060829 28800 7200 604800 300
Primary NS (mname)
ns1120.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017060829
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1120.ui-dns.org
ns1120.ui-dns.com
ns1120.ui-dns.de
ns1120.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:185.3.235.187/23 ip4:212.23.156.144/29 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.ess.de.barracudanetworks.com -all
📊 DNS lookups: 4/10
✓ 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 mx ip4:185.3.235.187/23 ip4:212.23.156.144/29 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.ess.de.barracudanetworks.com -all
- MS=ms34334603
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