Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
cotullaeducation.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 13:24:53 UTC · ↺ Refresh
MX Hostnames
- d336672b.ess.barracudanetworks.com
- d336672a.ess.barracudanetworks.com
MX Priorities
- d336672a.ess.barracudanetworks.com: 10
- d336672b.ess.barracudanetworks.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (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
hasslo.ns.cloudflare.com dns.cloudflare.com 2404702709 10000 2400 604800 1800
Primary NS (mname)
hasslo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404702709
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hera.ns.cloudflare.com
hasslo.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net include:sparkpostmail.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._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
9 records- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net include:sparkpostmail.com -all
- MS=ms22580779
- adobe-idp-site-verification=510fcbc31f29272eb26183826b326f46f4c23a5c2ee02340ab47a9b47679ba84
- anthropic-domain-verification-056b3a=Hp4JV8sw4Bmo2HGcUvaaN9pQ8
- apple-domain-verification=OcMcGyBDrRvwPyU5
- google-gws-recovery-domain-verification=56934433
- google-site-verification=CPH9wvpaD8hi7UxYBrtFH0w_aAV2U13DuFnHgzrmvfI
- google-site-verification=iUR07cM4nG4haBH4nlfyxuggn6zEu0tfOvHeyGTd6Mc
- smartsheet-site-validation=yTN8kEQBc6vu3bVYNL2NaXlBhGdnMXUE
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