Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mar-flex.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 19:38:28 UTC · ↺ Refresh
MX Hostnames
- d253600b.ess.barracudanetworks.com
- d253600a.ess.barracudanetworks.com
MX Priorities
- d253600a.ess.barracudanetworks.com: 0
- d253600b.ess.barracudanetworks.com: 1
A / AAAA Records
- 67.227.130.49 ↩ host.7vwm8n-lwsites.com
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
dns1.name-services.com info.name-services.com 1769442349 172800 900 1814400 300
Primary NS (mname)
dns1.name-services.com
Admin Email (rname)
info@name-services.com
Serial
1769442349
Refresh
172800s
Retry
900s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
dns5.name-services.com
dns1.name-services.com
dns2.name-services.com
dns4.name-services.com
dns3.name-services.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.safewebservices.com include:spf.ess.barracudanetworks.com ip4:70.32.94.174 ip4:64.56.100.245 ip4:64.56.100.240 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ 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: 216 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
2 records- SPFv=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.safewebservices.com include:spf.ess.barracudanetworks.com ip4:70.32.94.174 ip4:64.56.100.245 ip4:64.56.100.240 ~all
- knowbe4-site-verification=3fdde0769a06e20a46795764e780f823
Full email verification for mar-flex.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits