Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
williamson-thermoflo.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 00:40:07 UTC · ↺ Refresh
MX Hostnames
- mxb-0023ed01.gslb.pphosted.com
- mxa-0023ed01.gslb.pphosted.com
MX Priorities
- mxb-0023ed01.gslb.pphosted.com: 10
- mxa-0023ed01.gslb.pphosted.com: 10
A / AAAA Records
- 23.185.0.1 (no PTR)
- 2620:12a:8000::1 (no PTR)
- 2620:12a:8001::1 (no PTR)
Mail Server IPs
- 148.163.153.25 ↩ mx0b-0023ed01.pphosted.com
SOA Record
Raw SOA
ns1.spx.com dnsadmin.spx.com 413117734 10800 3600 2419200 900
Primary NS (mname)
ns1.spx.com
Admin Email (rname)
dnsadmin@spx.com
Serial
413117734
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns3.spx.com
ns2.spx.com
ns1.spx.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.hosting.americaneagle.com ip4:23.185.0.1 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- teamviewer-sso-verification=07001645c1ea415eaf61901e9ff73391
- m6pg9CZ9mPI09MpsxUiigbQujO1rcjXQmXYjvOXUVlx5G4dq8m9fc2NOzJ+HanVaucr6117aRgiMZQyS0gI3kg==
- iTroPzpUaW64c5BK/zrbcjn04CLxWg6QtVatq5XxNShW/x5jczFLOsjKfLodBxPaHuRNNbn++lBJEABSWyHvDg==
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.hosting.americaneagle.com ip4:23.185.0.1 ~all
- fdgsnlgtmmd1zcbxjlycwl0yrchbmz14
- MS=ms13411005
- g2p2p747ndynqbnpr59nhckh03yjnchs
- cnm6lpgr0sz8jps03tr8pghz902l4qbv
- 9IuDiBvDhaaegbdZFoxpozCjSX9OMtYkLY/C1JMlAEaqF9D6UDekxAdcBwNLGzQ3d695j8xirHksZaXWJuAUzA==
- ZOOM_verify_act2cGmYTxaVewrYkbzoug
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
See demo & docs
Deep verification
Full email verification for williamson-thermoflo.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits