bluedragon.nl

Valid Email Server
Domain Lookup › bluedragon.nl

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
bluedragon.nl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 10:50:22 UTC · ↺ Refresh

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MX Hostnames

  • bluedragon-nl.q-v1.mx.microsoft

MX Priorities

  • bluedragon-nl.q-v1.mx.microsoft: 0

A / AAAA Records

  • 136.144.131.2 ↩ web1.blue-hosting.nl

Mail Server IPs

  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.openprovider.nl dns.openprovider.eu 2026050802 10800 3600 604800 3600
Primary NS (mname)
ns1.openprovider.nl
Admin Email (rname)
dns@openprovider.eu
Serial
2026050802
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.openprovider.eu
ns2.openprovider.be
ns1.openprovider.nl

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.orbit.teamleader.eu include:notification.fortinet.net include:_spf.exactonline.nl include:amazonses.com include:9398312.spf04.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ 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

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.orbit.teamleader.eu include:notification.fortinet.net include:_spf.exactonline.nl include:amazonses.com include:9398312.spf04.hubspotemail.net -all
  • google-site-verification=5lhw3rR5bg80X4pXW6btkDjJNZUvafCwCf2_L-_xUQE
  • MS=ms35516810
  • hubspot-developer-verification=ODc3MDcwMjEtYjQzMy00NWQxLWE4ZWEtZGM2YTM0OWZhOGRi
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