jwharris.com

Valid Email Server
Domain Lookup › jwharris.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
jwharris.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 10:41:01 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-0017a702.gslb.pphosted.com
  • mxa-0017a702.gslb.pphosted.com

MX Priorities

  • mxb-0017a702.gslb.pphosted.com: 20
  • mxa-0017a702.gslb.pphosted.com: 10

A / AAAA Records

  • 207.89.49.159 (no PTR)

Mail Server IPs

  • 205.220.176.202 ↩ mx0b-0017a702.pphosted.com
  • 205.220.164.202 ↩ mx0a-0017a702.pphosted.com

SOA Record

Raw SOA udns1.cscdns.net hostmaster.cscdns.net 2019101167 28800 7200 1209600 86400
Primary NS (mname)
udns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2019101167
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

udns1.cscdns.net
udns2.cscdns.uk

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:209.115.101.71 ip4:207.89.49.0/24 ip4:172.25.160.15 ip4:172.25.112.15 ip4:91.213.218.15 ip4:91.213.218.143 include:_spf.salesforce.com include:_spf-sfdc.successfactors.com include:spf-0017a702.pphosted.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

5 records
  • MS=ms47302101
  • ZOOM_verify_Hx4Vvje4QRm3yvN-W_z44w
  • docusign=6294c556-6ec6-4d61-87fb-f0cf279bac3e
  • cisco-ci-domain-verification=7d5c4e4ee64a29d9d2a5bb43b90a595ea885c402d849e6800b0095a27dbddd83
  • SPFv=spf1 mx ip4:209.115.101.71 ip4:207.89.49.0/24 ip4:172.25.160.15 ip4:172.25.112.15 ip4:91.213.218.15 ip4:91.213.218.143 include:_spf.salesforce.com include:_spf-sfdc.successfactors.com include:spf-0017a702.pphosted.com include:spf.protection.outlook.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 jwharris.com

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

No credit card required
Get 1,000 Free Credits