Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atac.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 16:03:37 UTC · ↺ Refresh
MX Hostnames
- d300595b.ess.barracudanetworks.com
- d300595a.ess.barracudanetworks.com
MX Priorities
- d300595b.ess.barracudanetworks.com: 20
- d300595a.ess.barracudanetworks.com: 10
A / AAAA Records
- 34.139.21.246 ↩ 246.21.139.34.bc.googleusercontent.com
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
ns99.worldnic.com namehost.worldnic.com 126032416 10800 3600 604800 3600
Primary NS (mname)
ns99.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032416
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns100.worldnic.com
ns99.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:72.18.255.4/32 include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- t179svhdchj3lrdu219egipsu4
- SPFv=spf1 mx a ip4:72.18.255.4/32 include:spf.ess.barracudanetworks.com -all
- 7ou5s9n9s95lo1kuhqvg5lbiof
- lcb90u1792qebcdhv2s64a0ged
- 79tl86kkeuimsfkikdpqc006j1
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