charleston.k12.sc.us

Valid Email Server
Domain Lookup › charleston.k12.sc.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
charleston.k12.sc.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 06:26:32 UTC · ↺ Refresh

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MX Hostnames

  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx3.googlemail.com

MX Priorities

  • aspmx.l.google.com: 1
  • alt1.aspmx.l.google.com: 5
  • aspmx3.googlemail.com: 10
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • alt2.aspmx.l.google.com: 5

A / AAAA Records

  • 169.150.3.10

Mail Server IPs

  • 172.253.62.26 ↩ bc-in-f26.1e100.net
  • 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net

SOA Record

Raw SOA ns1-05.azure-dns.com postmaster.charleston.k12.sc.us 1 14400 300 2419200 300
Primary NS (mname)
ns1-05.azure-dns.com
Admin Email (rname)
postmaster@charleston.k12.sc.us
Serial
1
Refresh
14400s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns2-05.azure-dns.net
ns3-05.azure-dns.org
ns4-05.azure-dns.info
ns1-05.azure-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 exists:%{i}.spf.hc3997-14.iphmx.com ip4:169.150.3.10 ip4:50.223.178.203 ip4:50.223.178.208 include:_spf.google.com include:_spf.bbnotify.net include:spf.gaggle.net include:spfa.cpmails.com ip4:208.64.237.225 include:spf.protection.outlook.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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
  • jamf-site-verification=dQDbT1wFvT6-CSey81uY2w
  • docusign=5eb1a1cb-e470-41be-99fb-935fb682153c
  • ecostruxure-it-verification=7459905f-599f-4d5c-9533-82cbeceddc6c
  • 376zw890yzw46p57v1hpb2149w5x4nk5
  • google-site-verification=-1A87zWZh0JsA4gSk1pPt4zu7c-XwjoZRs8byy2Hivk
  • 1812bc15-f2a3-44d9-beb9-bc7bae2339d0
  • google-site-verification=CRu0rFOoJ8IGFnMBJLGsW7j8l77wBOvIAc5aeiKHlxY
  • MS=ms31056213
  • adobe-idp-site-verification=1b8f6217ff7517a598b3571247eda19c7333e74a20c7aef60f13f49d62ff005e
  • SPFv=spf1 exists:%{i}.spf.hc3997-14.iphmx.com ip4:169.150.3.10 ip4:50.223.178.203 ip4:50.223.178.208 include:_spf.google.com include:_spf.bbnotify.net include:spf.gaggle.net include:spfa.cpmails.com ip4:208.64.237.225 include:spf.protection.outlook.com ~all
  • cisco-ci-domain-verification=429678ccce66907907b33ab4cda65a397aff49b7258daff539b0c8b8ff337a26
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