bluecolibri.lu

Valid Email Server
Domain Lookup › bluecolibri.lu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bluecolibri.lu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 19:59:07 UTC · ↺ Refresh

MX Hostnames

  • d320996.a.ess.de.barracudanetworks.com
  • d320996.b.ess.de.barracudanetworks.com

MX Priorities

  • d320996.b.ess.de.barracudanetworks.com: 10
  • d320996.a.ess.de.barracudanetworks.com: 0

A / AAAA Records

  • 217.13.58.192 (no PTR)

Mail Server IPs

  • 18.185.115.251 ↩ mail.ess.de.barracuda.com
  • 18.185.115.252 ↩ mail.ess.de.barracuda.com
  • 18.185.115.250 ↩ mail.ess.de.barracuda.com

SOA Record

Raw SOA ns1.eurodns.com hostmaster.eurodns.com 2026012900 43200 7200 1209600 86400
Primary NS (mname)
ns1.eurodns.com
Admin Email (rname)
hostmaster@eurodns.com
Serial
2026012900
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns3.eurodns.com
ns4.eurodns.com
ns1.eurodns.com
ns2.eurodns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:31.216.146.68 include:spf.rcloud.eu include:spf.ess.de.barracudanetworks.com include:spf.colibri.mc
📊 DNS lookups: 3/10

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; fo=1; pct=100; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No 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 ip4:31.216.146.68 include:spf.rcloud.eu include:spf.ess.de.barracudanetworks.com include:spf.colibri.mc
  • hibp-verify=dweb_052614otr1ajxcxivhyqqh9w
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