olsonandjones.com

Valid Email Server
Domain Lookup › olsonandjones.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
olsonandjones.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 10:42:15 UTC · ↺ Refresh

MX Hostnames

  • d160597b.ess.barracudanetworks.com
  • d160597a.ess.barracudanetworks.com

MX Priorities

  • d160597a.ess.barracudanetworks.com: 10
  • d160597b.ess.barracudanetworks.com: 20

A / AAAA Records

  • 198.49.23.145 (no PTR)
  • 198.185.159.145 (no PTR)
  • 198.49.23.144 (no PTR)
  • 198.185.159.144 (no PTR)

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

SOA Record

Raw SOA freedns1.registrar-servers.com hostmaster.registrar-servers.com 1706036560 43200 3600 604800 3601
Primary NS (mname)
freedns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1706036560
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s

Nameservers (NS)

freedns1.registrar-servers.com
freedns5.registrar-servers.com
freedns3.registrar-servers.com
freedns2.registrar-servers.com
freedns4.registrar-servers.com

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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

1 record
  • SPFv=spf1 a mx 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
See demo & docs
Deep verification
Full email verification for olsonandjones.com

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

No credit card required
Get 1,000 Free Credits