koopler.de

Valid Email Server
Domain Lookup › koopler.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
koopler.de
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 03:45:53 UTC · ↺ Refresh

MX Hostnames

  • d318855.a.ess.de.barracudanetworks.com
  • d318855.b.ess.de.barracudanetworks.com

MX Priorities

  • d318855.b.ess.de.barracudanetworks.com: 0
  • d318855.a.ess.de.barracudanetworks.com: 0

A / AAAA Records

  • 99.83.190.102 ↩ aacb0a264e514dd48.awsglobalaccelerator.com
  • 75.2.70.75 ↩ aacb0a264e514dd48.awsglobalaccelerator.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 ns.udag.de hostmaster.united-domains.de 2023121307 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2023121307
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns.udag.org
ns.udag.net
ns.udag.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:d318855.a.ess.de.barracudanetworks.com include:d318855.b.ess.de.barracudanetworks.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • MS=ms21551856
  • google-site-verification=dgPysa1914-CfGcGAfXCGaKbyGdXzjMEKaMG5u8CKW0
  • mandrill_verify.mQAnVUTAhDZIFkmYqYdxKg
  • atlassian-domain-verification=Tl3rPpTooDlfw4wqf2wBuMDahwsjanaGk5f6WPAUFqKX9ivkp1maAWm2i/ztwa99
  • SPFv=spf1 include:spf.protection.outlook.com include:d318855.a.ess.de.barracudanetworks.com include:d318855.b.ess.de.barracudanetworks.com -all
  • include:spf-de.emailsignatures365.com
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