cps.k12.il.us

Valid Email Server
Domain Lookup › cps.k12.il.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cps.k12.il.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 17:26:56 UTC · ↺ Refresh

MX Hostnames

  • ALT2.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM
  • ASPMX3.GOOGLEMAIL.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX2.GOOGLEMAIL.COM

MX Priorities

  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • alt1.aspmx.l.google.com: 5
  • aspmx3.googlemail.com: 10
  • alt2.aspmx.l.google.com: 5

A / AAAA Records

  • 209.175.47.8 ↩ external47-8.cps.k12.il.us

Mail Server IPs

  • 64.233.180.27 ↩ on-in-f27.1e100.net
  • 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net

SOA Record

Raw SOA ns.cps.k12.il.us dnsadmin.cps.k12.il.us 2026031100 600 120 360000 300
Primary NS (mname)
ns.cps.k12.il.us
Admin Email (rname)
dnsadmin@cps.k12.il.us
Serial
2026031100
Refresh
600s
Retry
120s
Expire
360000s
Minimum TTL
300s

Nameservers (NS)

ns1.illinois.net
ns2.illinois.net
ns.cps.k12.il.us
ns2.cps.k12.il.us

SPF Record

✓ Soft Fail (~all)
v=spf1 include:sendgrid.net include:_spf.google.com ip4:209.175.45.104/29 ip4:64.150.6.224/28 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No 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

3 records
  • SPFv=spf1 include:sendgrid.net include:_spf.google.com ip4:209.175.45.104/29 ip4:64.150.6.224/28 ~all
  • google-site-verification=sMrUMtD_SkO1oGxJZPs89MO8HQGBcqphQb4TMGYmQtg
  • MS=ms99151325
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