columbusstate.edu

Valid Email Server
Domain Lookup › columbusstate.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
columbusstate.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 01:07:48 UTC · ↺ Refresh

MX Hostnames

  • columbusstate-edu.mail.protection.outlook.com

MX Priorities

  • columbusstate-edu.mail.protection.outlook.com: 0

A / AAAA Records

  • 168.26.226.206 ↩ www.ColumbusState.EDU

Mail Server IPs

  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)

SOA Record

Raw SOA ldns01.columbusstate.edu postmaster.ldns01.columbusstate.edu 2026031301 28800 7200 604800 600
Primary NS (mname)
ldns01.columbusstate.edu
Admin Email (rname)
postmaster@ldns01.columbusstate.edu
Serial
2026031301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns4.usg.edu
ns1.usg.edu
ldns02.columbusstate.edu
ns2.usg.edu
ldns01.columbusstate.edu
ns3.usg.edu

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:168.26.188.74 include:e2ma.net include:verifymyfafsa.com include:amazonses.com include:sendgrid.net ip4:216.17.93.137 ip4:204.232.238.194 ip4:184.106.13.89 ip4:74.122.104.0/22 ip4:168.25.59.111 ip4:3.131.30.10 ip4:3.17.21.10 ip4:198.187.196.0/24 ip4:168.245.104.207 ip4:168.245.64.222 ip4:168.245.70.33 ip4:168.245.92.69 ip4:168.245.92.70 ip4:168.245.92.72 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

16 records
  • adobe-idp-site-verification=0d561f88c086b74d501c88393e01b63547337b78253ca6cb35694f5bdabcf432
  • pardot964943=845904341e3ada729a4a6e13699e513ab6d3ca28afbdeeca08a141a093ee358b
  • google-site-verification=zUjzhOg76-pts3YpUVLvvjTbgYk_H9yEU-t1M2sGTWE
  • ip4:168.245.25.116
  • docusign=abf70640-7faa-4470-9872-f880a00353f4
  • _yr2bg7ttsd5hsuqkko17lgdzrnvptwd
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:168.26.188.74 include:e2ma.net include:verifymyfafsa.com include:amazonses.com include:sendgrid.net ip4:216.17.93.137 ip4:204.232.238.194 ip4:184.106.13.89 ip4:74.122.104.0/22 ip4:168.25.59.111 ip4:3.131.30.10 ip4:3.17.21.10 ip4:198.187.196.0/24 ip4:168.245.104.207 ip4:168.245.64.222 ip4:168.245.70.33 ip4:168.245.92.69 ip4:168.245.92.70 ip4:168.245.92.72 ~all
  • google-site-verification=qo4LIy_B_fd6o6B0FdnVSxpjGDMNrAXCPlbGPARMBeQ
  • google-site-verification=NsYZ6RPNDsWsBclXzszRQiermm64-vF2_RAGeFJYcaQ
  • e2ma-verification=babfb
  • google-site-verification=e_5_HR1LjbdQ_BkB0WxH-DWGdxI206ZBqpwu3rTbm-k
  • smartsheet-site-validation=8MSdKMpDVFTatMPr2eTc0kDw29WZ8fw1
  • figma-domain-verification=419a4b2dbde14b0beab30b2f7ab0c320984fc38d0b566a021eea67a18f210e09-1725462722
  • amazonses:F9egEOUL9cMYUSL0921nPfvi7qq2ENCYsPhBJ6u0HWQ=
  • 8vrnbiopmpn833nsejssmauias
  • 0b7qyp7w480j1lg6v3s1hyg14lthmpm5
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