gbn.io

Valid Email Server
Domain Lookup › gbn.io
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
gbn.io
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 10:46:19 UTC · ↺ Refresh

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MX Hostnames

  • mx1.hc4115-45.iphmx.com
  • mx2.hc4115-45.iphmx.com

MX Priorities

  • mx2.hc4115-45.iphmx.com: 0
  • mx1.hc4115-45.iphmx.com: 0

A / AAAA Records

  • 13.33.67.4 ↩ server-13-33-67-4.jfk50.r.cloudfront.net
  • 13.33.67.120 ↩ server-13-33-67-120.jfk50.r.cloudfront.net
  • 13.33.67.98 ↩ server-13-33-67-98.jfk50.r.cloudfront.net
  • 13.33.67.81 ↩ server-13-33-67-81.jfk50.r.cloudfront.net

Mail Server IPs

  • 207.54.93.246 (no PTR)
  • 139.138.47.241 (no PTR)

SOA Record

Raw SOA ns-893.awsdns-47.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-893.awsdns-47.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1075.awsdns-06.org
ns-1582.awsdns-05.co.uk
ns-169.awsdns-21.com
ns-893.awsdns-47.net

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.google.com include:22493496.spf04.hubspotemail.net exists:%{i}.spf.hc4115-45.iphmx.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; fo=1; pct=10; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: quarantine
⚠ Policy applies to 10% of failing messages only

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

6 records
  • facebook-domain-verification=h5ppu30bf9na4vdrxaq0vvaj9hbj60
  • SPFv=spf1 include:_spf.google.com include:22493496.spf04.hubspotemail.net exists:%{i}.spf.hc4115-45.iphmx.com -all
  • MS=ms81917410
  • apple-domain-verification=gJNhlVi3q7fW4Jas
  • duo_sso_verification=C23AZptoElh25S3HO0cJQKu2R4wtQ5iO028RyUgXyrNH7uyIwdgEKsV31ZmghbBV
  • duo_sso_verification=gNFK2jYR3X0CQvFPM5SeKQ0g9N38azN6uk7RG9EQUNKVCQaqnb7uTH0BasgAsdGU
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