Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
k12k.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:41:20 UTC · ↺ Refresh
MX Hostnames
- d333382a.ess.barracudanetworks.com
- d333382b.ess.barracudanetworks.com
MX Priorities
- d333382a.ess.barracudanetworks.com: 10
- d333382b.ess.barracudanetworks.com: 10
A / AAAA Records
- 104.18.235.36 (no PTR)
- 104.18.234.36 (no PTR)
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
ns1.ena.com hostmaster.ena.com 2025122201 7200 3600 604800 3600
Primary NS (mname)
ns1.ena.com
Admin Email (rname)
hostmaster@ena.com
Serial
2025122201
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.ena.com
ns1.ena.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:159.183.214.15 ip4:96.4.202.70 ip4:50.223.178.203 include:_spf.google.com include:_spf.ena.net include:customerspf.schoolmessenger.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate 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
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- SPFv=spf1 ip4:159.183.214.15 ip4:96.4.202.70 ip4:50.223.178.203 include:_spf.google.com include:_spf.ena.net include:customerspf.schoolmessenger.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
- bw=ZLJw1bvTV66h1PPqT6Mfx3HJ9LSt2rV23dsKr1cSBYaF
- e2ma-verification=nozbb
- apple-domain-verification=TS2okrLL3njt0ndE
- google-site-verification=CFEkRiDOFGMYXpvJZwGEsP9oNvlZz5sBTu2hU8qA1Nk
- openai-domain-verification=dv-lvORyiWoPR7EjjuyDPOgYg06
- okt14sqg273kbouo5lnu25sg3b
- google-site-verification=n_IzUSNCfY6z-yDqRnbMLYpfYjMuE1q3nCDIxUN-d9c
- google-site-verification=CwzQPtO7lwpMCdYBiKKylx74J0UMRqLUhtnpbx02_cc
- MS=ms90526174
- autodesk-domain-verification=6VQ1fZlU0VPm4Jy2GP-p
Full email verification for k12k.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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