Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tustin.k12.ca.us
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:59:35 UTC · ↺ Refresh
MX Hostnames
- d342878a.ess.barracudanetworks.com
- d342878b.ess.barracudanetworks.com
MX Priorities
- d342878b.ess.barracudanetworks.com: 11
- d342878a.ess.barracudanetworks.com: 10
A / AAAA Records
- 104.17.71.73 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.tustin.k12.ca.us hostmaster.tusd.local 2024310733 1300 650 1309600 3600
Primary NS (mname)
ns1.tustin.k12.ca.us
Admin Email (rname)
hostmaster@tusd.local
Serial
2024310733
Refresh
1300s
Retry
650s
Expire
1309600s
Minimum TTL
3600s
Nameservers (NS)
ns2.ocde.us
ns1.ocde.us
ns2.tustin.k12.ca.us
ns1.tustin.k12.ca.us
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:104.249.111.153 ip4:104.249.72.153 ip4:104.249.111.155 ip4:104.249.72.155 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
12 records- SPFv=spf1 ip4:104.249.111.153 ip4:104.249.72.153 ip4:104.249.111.155 ip4:104.249.72.155 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.ess.barracudanetworks.com ~all
- kboea707rbdr0a61qcuoh1lsjq
- gnuh2aqb0+touoDeiEkdSVc0QHelSeoi2bzseAFOR4JMUfhFpvPsYk00LallXksRru1EmBpGSVPMIR1Nh8mtnw==
- 2a93e9d6-3a35-4894-8768-67f88c27c698
- jamf-site-verification=ZccGCxjGG_gZlb99sjT4lg
- duo_sso_verification=CBLkfq8rlNlBYfkGx58B6sjScZzqsFMZ9lD9cjo6k8UtbCRJ9WIsecWuEv708AE7
- p5qitrsblumqt2bfoaf10qq1kf
- cisco-ci-domain-verification=18e9b5d14652aa64744d12f93f9d783d2d0f4f3c31d97efc77ca24975b9967a3
- apple-domain-verification=eYRnIFYATB1D48sZ
- 6rfm0m5h6mm2e79tju4a51baap
- ZOOM_verify_BSTtGFLYSx2bF0MvboKNbg
- f50c71ttsdf8lufk1p2oi6ebb2
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