Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
purdue.edu
Yes
✓ Yes
Outlook
No
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 08:59:10 UTC · ↺ Refresh
MX Hostnames
- purdue-edu.mail.protection.outlook.com
MX Priorities
- purdue-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 128.210.7.200 (no PTR)
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.purdue.edu hostmaster.purdue.edu 716087208 1200 180 1209600 3600
Primary NS (mname)
ns3.purdue.edu
Admin Email (rname)
hostmaster@purdue.edu
Serial
716087208
Refresh
1200s
Retry
180s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns4.purdue.edu
ns3.purdue.edu
ns5.purdue.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
21 records- facebook-domain-verification=izc7cwx7c6ynlbzt3bvcasz2natro9
- cisco-ci-domain-verification=5e16bdfb5c92c6d57a381bafa4689d833ce3fed29b3c973bfaba11f146732613
- atlassian-domain-verification=YwCJ4gAdGrIy4Trr5Fq2mBW41Vo4HOdkqNXNFssajAgT0sPIhkb7hiXXG8gCVzrz
- brevo-code:231c553f8bfc20a63e4de939455f5991
- apple-domain-verification=PR5U9BqX66R0APG8
- oysmqwNak8YGUW3sLWwJg1feIr+RzjS3GAjdI6bSHjLGftS6HmMqoAUagGXLrjogVk4ptcEPz+5oyrWQeCkXKw==
- webexdomainverification.GDSP=4bd98732-2799-47d1-bbd3-66e6149d1cad
- airtable-verification=b01c1d3515c017805e817e21360a0506
- bw=ukH9x7TrdldFT0SuYfXZ8aOBpFT8H6VI3GtpDr5RdXfU
- #^0zq4LIZZq&CRglVz*@h6QFrQYfE%r9YPjtMugJ!pfYMDS%Y&PYMB0@TDM@R%fbcn#ZZZDfrpH2qO#@1CW2rhspOp8HVd0IU7l
- google-site-verification=en6dTnGVvW0yFBlNPxKv5aSBsJNG9XTRlJLx5xzkEGE
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all
- _globalsign-domain-verification=LBGN_PGPzs-K_ugvlmQc5pBRof3QCVximyhc9hNKsU
- atlassian-domain-verification=rwaaUqSzGwq84NSUvMqT86CCHDKF7TMyoaPiQVgP6sQUY3/aeaNsTmHVDEBNmFQ9
- n98pbk2retfsg11ronqr8158mu
- autodesk-domain-verification=0mpL8cXJsDjFqdB61_oM
- MS=6F64A1C5D9A24164AA0A7E59CC8C1E7758DE8E88
- 8c707d78-2dc6-4bac-b4f9-4f2ff625f327
- jamf-site-verification=VaeBGvW_vGEVdXlQmlspfQ
- airtable-verification=532cf661a9f1ce7337e69babb11917de
- adobe-idp-site-verification=82aaf4b4-e1ab-4a7d-bea2-10f5820faec9
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