thomafoundation.org

Valid Email Server

Domain Overview

DNS: ✓ 11d ago Checker: ✓ 11d ago
thomafoundation.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-08-23 21:13:09 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

  • d207973b.ess.barracudanetworks.com
  • thomafoundation-org.mail.eo.outlook.com
  • d207973a.ess.barracudanetworks.com

MX Priorities

  • d207973a.ess.barracudanetworks.com: 10
  • d207973b.ess.barracudanetworks.com: 20
  • thomafoundation-org.mail.eo.outlook.com: 99

A / AAAA Records

  • 104.21.75.171
  • 172.67.179.69
  • 2606:4700:3034::6815:4bab
  • 2606:4700:3036::ac43:b345

Mail Server IPs

  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::

SOA Record

Raw SOA noor.ns.cloudflare.com dns.cloudflare.com 2411450504 10000 2400 604800 1800
Primary NS (mname)
noor.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2411450504
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

randy.ns.cloudflare.com
noor.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.zohomail360.com include:aspmx.pardot.com include:_spf.salesforce.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

2 records
  • pardot1115623=b0740493069ebbdb306133d18a3a30b752dc5cdbc9032d56c093eb4e0c5be90d
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.zohomail360.com include:aspmx.pardot.com include:_spf.salesforce.com -all
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 thomafoundation.org

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

No credit card required
Get 1,000 Free Credits