Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
princeton.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 22:22:40 UTC · ↺ Refresh
MX Hostnames
- princeton-edu.mail.protection.outlook.com
MX Priorities
- princeton-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 140.180.223.22 ↩ princeton.edu
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
iblox-external.princeton.edu helpdesk.princeton.edu 2019115740 1800 900 2419200 600
Primary NS (mname)
iblox-external.princeton.edu
Admin Email (rname)
helpdesk@princeton.edu
Serial
2019115740
Refresh
1800s
Retry
900s
Expire
2419200s
Minimum TTL
600s
Nameservers (NS)
ns5.dnsmadeeasy.com
a7-65.akam.net
a24-66.akam.net
a1-158.akam.net
a6-64.akam.net
a3-67.akam.net
ns6.dnsmadeeasy.com
a20-65.akam.net
ns7.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
18 records- dropbox-domain-verification=xf71iopc45pc
- google-site-verification=9spyuhtdpgltj4ba6qol87mlltsvqwtwpfpjckhxuaa
- apple-domain-verification=M2IB2C41pkMXfS91
- kwaacu+go+erbui7ikfpg6udfqlprkz9e2pxxeafjplnmhnkyjnfg0uokvami2f8iz7qet4dr+j8ou3/k7lz0a==
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- github-verification=fRwTRsEqERcBV3GgKMdt4RYrb8CWTfLrN72Z5WdW
- R6TEJ9GJ2ECTYPQRT0T76RZIKOG4TQV1Z6TD75P33
- airtable-verification=f404295b37024f7747d2de8944a93fee
- adobe-idp-site-verification=73f4a96f-50ca-4b7f-858e-6cef4af902aa
- paloaltonetworks-site-verification=fb3d98b6d82f4593542f655e32a264fe763b0b1ce0a80f5ceccc5c5d0feff519
- docusign=9b74122b-7e36-4311-9fd4-a1f8200928a9
- google-site-verification=fxbfrfkt_fmpamiadsiqhygwsrxgcfsmxpkveva7bhk
- 57dmsH4y22BIE+OMFrnNvGtt3xyyh2Z/XhvRbQfkhMSIMh88zNcjCr/Bj0nOzrEDguiuGBxFOcYuCiw5hfnvDg==
- verifying for Netlify support case #19507
- ms=ms98806852
- atlassian-domain-verification=uT+jiLnKmr+CvFxx3GGJaEAobMxLzqz6Kl+AO4ha-HGmEtTXuiNTu7uqG1zePfpI
- jamf-site-verification=gOHFT5mfGhE1m6aC3XEdag
- docusign=8ee25fec-197b-476d-9659-5a3717059bc0
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