tbnetwork.org

Valid Email Server
Domain Lookup › tbnetwork.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tbnetwork.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 14:54:31 UTC · ↺ Refresh

MX Hostnames

  • alt1.aspmx.l.google.com
  • aspmx3.googlemail.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx.l.google.com
  • aspmx5.googlemail.com
  • aspmx4.googlemail.com

MX Priorities

  • aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 10
  • alt2.aspmx.l.google.com: 10
  • aspmx4.googlemail.com: 10
  • aspmx2.googlemail.com: 20
  • aspmx3.googlemail.com: 20
  • aspmx5.googlemail.com: 20

A / AAAA Records

  • 104.198.14.52 ↩ 52.14.198.104.bc.googleusercontent.com

Mail Server IPs

  • 142.251.179.27 ↩ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c1d::1b ↩ ww-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net

SOA Record

Raw SOA ian.ns.cloudflare.com dns.cloudflare.com 2395326886 10000 2400 604800 1800
Primary NS (mname)
ian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395326886
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

lucy.ns.cloudflare.com
ian.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a ptr include:raisingit.com include:sendgrid.net ?all
📊 DNS lookups: 4/10
? Neutral (?all) — no enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

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

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

All TXT Records

2 records
  • SPFv=spf1 a ptr include:raisingit.com include:sendgrid.net ?all
  • SPFv=spf1 include:aspmx.googlemail.com include:cmail1.com ~all
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