Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atu.org
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 01:15:56 UTC · ↺ Refresh
MX Hostnames
- d183764b.ess.barracudanetworks.com
- d183764a.ess.barracudanetworks.com
MX Priorities
- d183764a.ess.barracudanetworks.com: 0
- d183764b.ess.barracudanetworks.com: 10
A / AAAA Records
- 18.207.147.175 ↩ ec2-18-207-147-175.compute-1.amazonaws.com
- 52.2.22.143 ↩ ec2-52-2-22-143.compute-1.amazonaws.com
- 52.3.56.140 ↩ ec2-52-3-56-140.compute-1.amazonaws.com
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
ns47.worldnic.com namehost.worldnic.com 126012810 10800 3600 604800 3600
Primary NS (mname)
ns47.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126012810
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns48.worldnic.com
ns47.worldnic.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ip4:204.148.33.206 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
5 records- MS=ms59087035
- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ip4:204.148.33.206 ~all
- MS=4D8D152492E75BB56B71D1E6ED47223E8FFF00E5
- google-site-verification=HV37h-Kfm275Qe7Z4Er-gGBOOooU26j4hA1_QfxvYNw
- h4vs8b453t93pto6u0qt4su99b
Full email verification for atu.org
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