thinkingheads.com

Valid Email Server
Domain Lookup › thinkingheads.com

Domain Overview

DNS: ✓ just now Checker: ✓ just now
thinkingheads.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-23 02:53:43 UTC · ↺ Refresh

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MX Hostnames

  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 20
  • alt2.aspmx.l.google.com: 30
  • alt3.aspmx.l.google.com: 40
  • aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 20

A / AAAA Records

  • 104.26.1.224
  • 172.67.70.211
  • 104.26.0.224
  • 2606:4700:20::ac43:46d3
  • 2606:4700:20::681a:e0
  • 2606:4700:20::681a:1e0

Mail Server IPs

  • 172.253.157.27 ↩ yubrupd-in-f27.1e100.net
  • 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
  • 192.178.234.26 ↩ ncsclj-in-f26.1e100.net
  • 2800:3f0:4003:c14::1a (no PTR)

SOA Record

Raw SOA felipe.ns.cloudflare.com dns.cloudflare.com 2415478109 10000 2400 604800 1800
Primary NS (mname)
felipe.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2415478109
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

heather.ns.cloudflare.com
felipe.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:servers.mcsv.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
google._domainkey
mail._domainkey
✓ Public key: 392 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

11 records
  • google-site-verification=kHhXWTMdG_rSKRbrXY7HBhKlevsu5YjIeN8a2Is9ufk
  • google-site-verification=tkO3cUWivmXUUgu2GTOGvh7DGkHJ9lJJTDZ6IB8Zszs
  • linkedin-site-verification=f6f573a0-0735-49e3-bd50-02820590e091
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAm6pZwYrYF076UMK28QXYc4y8lnCuco9g57TTDgIgqt8t/x+9bJYdeEsjaXy8K6IBY8Qild9VNoDBtLhWDQfnKE2U3HYvKw4rvqgLiSdRHJBltIGtigAOpO2mYRAayg81oP5qJ/JGJcFQh0/sRgFencV2PwXK/k0lfIewzWAwLIH+bpudPyuLmXX18Yr03zErKVln0u3QSixc71KYALJfzalH97GvfdfIQMsxr9MZ4Iv9PV6/qCJcf+VxKJwwgp+YAsc3Lx6CyjNyyTUB+HwIMGLYWsyv+5QIxDXUp34g5qo4ntOARJqlBRNrfoi79NnKLeR3BVhRZOLm1TfzmuDVsQIDAQAB
  • SPFv=spf1 include:_spf.google.com include:servers.mcsv.net ~all
  • 2021080305515750uubi6t3687g9qng71k5rmyivvokw1t7j6klj7coekdizt0ay
  • MS=ms22536844
  • apple-domain-verification=09Aocrr8YGQHbBwe
  • brevo-code:ae5cca6a35faad83995a120753730d68
  • facebook-domain-verification=fwqd9mfg6lxuykvtqy2mvglxlc7go0
  • google-site-verification=-6JJ-hh7v-f4HcTfpjPb5E88qkKiHC9BMnTyew8cwn0
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