Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
closource.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 06:32:17 UTC · ↺ Refresh
MX Hostnames
- d262713b.ess.barracudanetworks.com
- d262713a.ess.barracudanetworks.com
MX Priorities
- d262713a.ess.barracudanetworks.com: 0
- d262713b.ess.barracudanetworks.com: 10
A / AAAA Records
- 54.188.175.58 ↩ ec2-54-188-175-58.us-west-2.compute.amazonaws.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns67.domaincontrol.com dns.jomax.net 2025102801 28800 7200 604800 600
Primary NS (mname)
ns67.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025102801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns67.domaincontrol.com
ns68.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.zixsmbhosted.com include:closource-com.spf.smtp25.com include:spf.ess.barracudanetworks.com include:spf.happyfox.com include:spfa.cpmails.com ip4:149.72.166.184 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
2 records- knowbe4-site-verification=7789628381f4984c2731864b067c4bde
- SPFv=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.zixsmbhosted.com include:closource-com.spf.smtp25.com include:spf.ess.barracudanetworks.com include:spf.happyfox.com include:spfa.cpmails.com ip4:149.72.166.184 -all
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