Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
isds.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 21:56:18 UTC · ↺ Refresh
MX Hostnames
- d294525a.ess.barracudanetworks.com
- d294525b.ess.barracudanetworks.com
MX Priorities
- d294525b.ess.barracudanetworks.com: 20
- d294525a.ess.barracudanetworks.com: 10
A / AAAA Records
- 52.162.107.38 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1-34.azure-dns.com hostmaster.ssinet.com 2025071801 3600 120 3600 3600
Primary NS (mname)
ns1-34.azure-dns.com
Admin Email (rname)
hostmaster@ssinet.com
Serial
2025071801
Refresh
3600s
Retry
120s
Expire
3600s
Minimum TTL
3600s
Nameservers (NS)
ns4-34.azure-dns.info
ns1-34.azure-dns.com
ns2-34.azure-dns.net
ns3-34.azure-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:12.168.52.0/24 ip4:167.89.60.101 ip4:67.216.225.19 ip4:69.25.30.75 ip4:12.167.5.103 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf.constantcontact.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
s1._domainkey
s2._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
3 records- SPFv=spf1 ip4:12.168.52.0/24 ip4:167.89.60.101 ip4:67.216.225.19 ip4:69.25.30.75 ip4:12.167.5.103 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf.constantcontact.com ~all
- SFMC-fNbK60eNLpmYT4NdDe2sUZ6HQLwplt7TyzaG6yIz
- google-site-verification=7z_2mtfl6jnHwKIbdb6naH4GetNTWrKdL534vL-cvjk
Full email verification for isds.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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