Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marlinspring.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 15:33:59 UTC · ↺ Refresh
MX Hostnames
- d407751.a.ess.ca.barracudanetworks.com
- d407751.b.ess.ca.barracudanetworks.com
MX Priorities
- d407751.a.ess.ca.barracudanetworks.com: 10
- d407751.b.ess.ca.barracudanetworks.com: 20
A / AAAA Records
- 35.183.5.1 ↩ ec2-35-183-5-1.ca-central-1.compute.amazonaws.com
Mail Server IPs
- 15.222.16.209 ↩ mail.ess.ca.barracuda.com
- 15.222.16.211 ↩ mail.ess.ca.barracuda.com
- 15.222.16.210 ↩ mail.ess.ca.barracuda.com
SOA Record
Raw SOA
ns27.domaincontrol.com dns.jomax.net 2025102400 28800 7200 604800 600
Primary NS (mname)
ns27.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025102400
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns27.domaincontrol.com
ns28.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:mailgun.org include:spf.protection.outlook.com include:spf.ess.ca.barracudanetworks.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:mailgun.org include:spf.protection.outlook.com include:spf.ess.ca.barracudanetworks.com ~all
Full email verification for marlinspring.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits