flatiron.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
flatiron.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-01 14:52:32 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mxb-003fa001.gslb.pphosted.com
  • mxa-003fa001.gslb.pphosted.com

MX Priorities

  • mxa-003fa001.gslb.pphosted.com: 10
  • mxb-003fa001.gslb.pphosted.com: 10

A / AAAA Records

  • 172.66.133.32 (no PTR)
  • 172.66.136.155 (no PTR)
  • 2606:4700:10::ac42:889b (no PTR)
  • 2606:4700:10::ac42:8520 (no PTR)

Mail Server IPs

  • 148.163.138.53 ↩ mx0b-003fa001.pphosted.com

SOA Record

Raw SOA kara.ns.cloudflare.com dns.cloudflare.com 2406428314 10000 2400 604800 1800
Primary NS (mname)
kara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2406428314
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kara.ns.cloudflare.com
tim.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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

22 records
  • adobe-idp-site-verification=e7f37aecdfa4349d8686a642e6b23cc1b211698ee7590653d334932f918c9181
  • paloaltonetworks-site-verification=828cb8f35920ef882777d70a44a16e53db38055e1bda40974450118c12c7507b
  • spacelift-domain-verification=e0hDNFeJGWGsY0eI
  • apple-domain-verification=snE3FxrLYh8CU0q3
  • jamf-site-verification=KVINfP0IXw9x30X9JQ3WBg
  • beam-verification=theJBW6fBxgz9e9QweznEOw4b02twFY4nQK9rcpjHmNkbbnn
  • docker-verification=5fc7ff0d-8c01-4b4b-b3a0-5c0ad143ce61
  • google-site-verification=wPFEU2huD-dRILMh8ofs8MDZjOQeycNOqLBeeonTsyY
  • google-site-verification=s9HuU3af_3foDDrvuh9boeY9AeBSmPN0WgKe1-No9IM
  • atlassian-domain-verification=XRbE+e7/YsQEAqN6TrLeV3gaKZJ+TziOZv3LRS5PdkXy5XK0Fuq0qb/NXVrdMDZM
  • cursor-domain-verification-xpee50=qhOKF8lNvofwAqDD212B5XSMO
  • status-page-domain-verification=bnd958wx00q3
  • miro-verification=35cac683df6fcfc9cb7de88b46dee722b7f2355e
  • wrike-verification=Njk5MDM5OmI2YjJhOWJkOWEwYjJjYTE1NjllZTZjODM3ZmI5ZTNmMDUxZmM1MWZmZThmNWZhMmY4YzRjMWEzMDRiNTA4ODM=
  • google-site-verification=Zv35_fbCz8zYCCnujWUJqgT_6wvRdtEfCR2cpSy_e6Y
  • virtru-site-verify=81GHWOIEydofi34719pDLIASGd23sgfir8816nda
  • MS=EAEB33728A7BBFF1EE6EA6B8AD6F8273D0387D2D
  • google-site-verification=tFaW6c5FbWTZup_ZayjSDqsHayMZedI-mf6FQO0yX7M
  • 9z706cgdcjkljk57hwpjcs38crpz5p7h
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
  • docusign=b8af8ad5-9ad1-4389-895c-4b7ce192bf80
  • paloaltonetworks-site-verification=3e7857f966f7ddf62bdf15a711144e107c5b00822cb4c23ac4eb54e49ea12dd2
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for flatiron.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits