unboundary.com

Valid Email Server
Domain Lookup › unboundary.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
unboundary.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 21:39:42 UTC · ↺ Refresh

MX Hostnames

  • unboundary-com.mail.protection.outlook.com

MX Priorities

  • unboundary-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 75.2.70.75 ↩ aacb0a264e514dd48.awsglobalaccelerator.com
  • 99.83.190.102 ↩ aacb0a264e514dd48.awsglobalaccelerator.com

Mail Server IPs

  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 17 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
17
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s

Nameservers (NS)

ns-cloud-b4.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b1.googledomains.com
ns-cloud-b3.googledomains.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

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

All TXT Records

2 records
  • MS=ms46683084
  • SPFv=spf1 include:spf.protection.outlook.com -all
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