brentwood.k12.ca.us

Valid Email Server
Domain Lookup › brentwood.k12.ca.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
brentwood.k12.ca.us
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 05:43:08 UTC · ↺ Refresh

MX Hostnames

  • d119666b.ess.barracudanetworks.com
  • d119666a.ess.barracudanetworks.com

MX Priorities

  • d119666b.ess.barracudanetworks.com: 20
  • d119666a.ess.barracudanetworks.com: 10

A / AAAA Records

  • 34.238.178.141 ↩ ec2-34-238-178-141.compute-1.amazonaws.com

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.brentwood.k12.ca.us admin.ns1.brentwood.k12.ca.us 2013020759 900 600 86400 3600
Primary NS (mname)
ns1.brentwood.k12.ca.us
Admin Email (rname)
admin@ns1.brentwood.k12.ca.us
Serial
2013020759
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s

Nameservers (NS)

ns1.brentwood.k12.ca.us
ns2.brentwood.k12.ca.us

SPF Record

✓ Strict (-all)
v=spf1 ip4:169.199.141.143 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

12 records
  • img2qq8v8c2j6teie5sutcfdmi
  • I84ggrucv3r61sb4joat93m8j0
  • 73deae487226496bd98630ee9ded764b
  • e62fecbae1236fd691a2578457da5445
  • 5ocgglel35i851irh304bdutca
  • apple-domain-verification=B2WbT7ZzOoxmYX92
  • 608usg39eajmpijvjpq9v55do4
  • SPFv=spf1 ip4:169.199.141.143 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
  • MS=BDC826F0025F6BBC4FFC3B06F60DDF3073C4F8F2
  • D3zYpYbghLafX4iLGno4RSOQ9iYLlM20m9y191ap1u9+9MdLE1W4wMGp2OozboIcRHmxMIUVQXBLM1APttS1UQ==
  • H65RASOIC6M03UDU0QGA08J70A
  • google-site-verification=fR5OCJ3H81qaz_WtQadeTiO9XFJNukE7JEFTSLcB2Zo
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