osu.edu

Valid Email Server
Domain Lookup › osu.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
osu.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 01:32:50 UTC · ↺ Refresh

MX Hostnames

  • mxa-002cfd01.gslb.pphosted.com
  • mxb-002cfd01.gslb.pphosted.com

MX Priorities

  • mxa-002cfd01.gslb.pphosted.com: 10
  • mxb-002cfd01.gslb.pphosted.com: 10

A / AAAA Records

  • 75.2.76.225 ↩ adb3d01069f8e5066.awsglobalaccelerator.com
  • 99.83.250.163 ↩ adb3d01069f8e5066.awsglobalaccelerator.com

Mail Server IPs

  • 148.163.155.97 ↩ mx0b-002cfd01.pphosted.com

SOA Record

Raw SOA ns5.net.ohio-state.edu hostmaster.osu.edu 691028406 21600 10800 604800 10800
Primary NS (mname)
ns5.net.ohio-state.edu
Admin Email (rname)
hostmaster@osu.edu
Serial
691028406
Refresh
21600s
Retry
10800s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns4.net.ohio-state.edu
ns5.net.ohio-state.edu
ns4.oar.net
ns5.oar.net
ns6.oar.net
ns7.oar.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:140.254.54.0/26 ip4:131.187.90.204 ip4:131.187.90.205 ip4:128.146.86.128/27 ip4:128.146.193.0/27 ip4:128.146.163.0/26 ip4:148.163.151.149 ip4:148.163.155.97 ip4:128.146.138.0/25 ip4:128.146.17.48 ip4:128.146.17.76 ip4:128.146.17.77 ip4:128.146.163.14 ip4:128.146.163.18 ip4:128.146.163.21 include:spf1.osu.edu include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=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]
↳ Subdomain policy: reject

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

25 records
  • google-site-verification=bzDkUURD54SjtfhrF9qRbs9mgQWXA5pY_DyWzvRI2wE
  • AppID=000000004004159E
  • iOS-enroll=https://ldgateway.it.ohio-state.edu/rtc/cio-ldms10-prd/MDM/api/v1/enroll/IosEnroll
  • apple-domain-verification=QPVQzCccz0ZziOYr
  • ho2dgpNdjnGQDVUzoPMWgSfMO8VaMqoZEmXtEvSfDF/GDLFV0MLL85HpnPI0yrhjjcvaRGvj74U0152aBWcGVQ==
  • v=msv1 t=A89FDA91-83F4-4248-8B72-7A8D72482707
  • ZBJE5GE9JY0N038X80BFODMAEN3J1TEFGD6M1W48X
  • BkGlTdCvGmG9W0+KwebLRTRfXsAVwfqRtmNEAEuZD/A+/Xvsmquqb4nfsMp0a9I84qbcOWkE9H3MgFcVcPSgeg==
  • docusign=8fe2784e-cf70-44bc-91dc-9e2b701c76af
  • docker-verification=c4b16900-af54-4e43-bebf-540873fc40e1
  • /Yla8ho6TTSrsDG3LTZj3+aXSuehjIqCEpUPFCZLi3aBHxfSUDwWCJYWeRMZQdye2/2fNBDu64+kiZ1Gd0okBg==
  • +oDRHuhkKAugHxae5F0DPg7FnHsmiQyaPMvEmSs+Q4lwroTrOcQImwynk1xfy7fEkcpI5n1r0WgJ9IqorMzEqA==
  • wso2-domain-verification:hB3DSFW4xJbyTVO
  • smartsheet-site-validation=OPkEOre199tTH4v2HV-Fto2qrvUgqJ3_
  • docusign=3293a0b7-44cf-434f-af1c-5eea8ed1584a
  • cisco-ci-domain-verification=17b36144ac22c9718b8b116cdf40050cce5f9918afbad184b4764a5c8b36fe89
  • android-enroll=https://ldgateway.it.ohio-state.edu/rtc/cio-ldms10-prd/MDM/api/v1/enroll/AndroidEnroll
  • MS=ms61534872
  • apple-domain-verification=nkdB4Iobo8CZiugZ
  • uoxuzm0ql7qJiy7cTo4ld7K8yomXt68qKjjLqTcQ1qFn7mk2Mquqdxh9rjsiwzVl/Ddx4qQePkJ+DL2kOJH4pw==
  • SPFv=spf1 ip4:140.254.54.0/26 ip4:131.187.90.204 ip4:131.187.90.205 ip4:128.146.86.128/27 ip4:128.146.193.0/27 ip4:128.146.163.0/26 ip4:148.163.151.149 ip4:148.163.155.97 ip4:128.146.138.0/25 ip4:128.146.17.48 ip4:128.146.17.76 ip4:128.146.17.77 ip4:128.146.163.14 ip4:128.146.163.18 ip4:128.146.163.21 include:spf1.osu.edu include:spf.protection.outlook.com ~all
  • 3yuFm9Th6DL1jZuCZ6W663BoeGNEl8Z5KMbFIPGT7+2kjv19hPrzzQkM9teGWuWCrUSDPpcpSA/wFEhCRU4gyA==
  • adobe-idp-site-verification=41bb8575-f086-41e0-b9c8-03d06f169b9c
  • jamf-site-verification=ksWjqgfVy9f1zutaQ-YgMg
  • asv=233bf36a6249f5b347704c29a4865cb3
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for osu.edu

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits