Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
caldwellschools.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 15:43:10 UTC · ↺ Refresh
MX Hostnames
- ALT2.ASPMX.L.GOOGLE.com
- ASPMX.L.GOOGLE.com
- ALT3.ASPMX.L.GOOGLE.com
- ALT4.ASPMX.L.GOOGLE.com
- ALT1.ASPMX.L.GOOGLE.com
MX Priorities
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 5
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 54.221.139.169
- 18.233.124.95
Mail Server IPs
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
ns1.caldwellschools.com shgriffin.caldwellschools.com 2020111130 1200 600 1209600 3600
Primary NS (mname)
ns1.caldwellschools.com
Admin Email (rname)
shgriffin@caldwellschools.com
Serial
2020111130
Refresh
1200s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.caldwellschools.com
ns1.caldwellschools.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:152.26.11.31 include:_spf.google.com include:spf.schoolwires.net include:_spf.psm.knowbe4.com include:talkingpts.org -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; pct=100; ruf=mailto:[email protected]; rua=mailto:[email protected]; p=reject; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 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
5 records- openai-domain-verification=dv-cl2oB9nBvN08XEOksORJbku0
- adobe-idp-site-verification=0a62f4ecf9f7a640f6716bfe983811e072a8e27cb826bba6e3767c4a68335c37
- apple-domain-verification=2lEpICTYJgltCVdZ
- MS=D8FA9DB6DCD08FD60B33E24F166D310C2C9970EA
- SPFv=spf1 ip4:152.26.11.31 include:_spf.google.com include:spf.schoolwires.net include:_spf.psm.knowbe4.com include:talkingpts.org -all
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