Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
csuohio.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 01:27:06 UTC · ↺ Refresh
MX Hostnames
- csuohio-edu.mail.protection.outlook.com
MX Priorities
- csuohio-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8001::4 (no PTR)
- 2620:12a:8000::4
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.csuohio.edu helpdesk.csuohio.edu 1388 14400 3600 2419200 180
Primary NS (mname)
ns1.csuohio.edu
Admin Email (rname)
helpdesk@csuohio.edu
Serial
1388
Refresh
14400s
Retry
3600s
Expire
2419200s
Minimum TTL
180s
Nameservers (NS)
ns2.csuohio.edu
ns1.csuohio.edu
ns7.oar.net
ns6.oar.net
ns5.oar.net
ns4.oar.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.csuohio.edu exists:%{i}._spf.mta.salesforce.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
mail._domainkey
k1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- d365mktkey=st4vrLAcxouppc3UAt6zhgmm2LjjfxqWSDzRifEyFEUx
- SPFv=spf1 include:spf.protection.outlook.com include:spf1.csuohio.edu exists:%{i}._spf.mta.salesforce.com -all
- google-site-verification=6maR6FMS2CvoMAzRrhoWiGrzUUqWsVG32R8y01xK09M
- teamviewer-sso-verification=3a80b02769554732a1e4acfb047b0db5
- brevo-code:aef9d214f146eb6c7093e5c4e1f1de34
- apple-domain-verification=akNONhqcg9Z0MvSX
- d365mktkey=uo9aj48MkkXpERkJ7tG3Szo13Mha0W0H28MHBINWSa4x
- facebook-domain-verification=91uea4q79wdcxnq2jpgsil6d227jbj
- cisco-ci-domain-verification=2f35bde62eb6dc5efe770e637cd1f5e4417870a4ceb2c816e30ad831c1f30cde
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