Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbia.edu
Yes
✓ Yes
Proofpoint
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 13:05:29 UTC · ↺ Refresh
MX Hostnames
- mxb-00364e01.gslb.pphosted.com
- mxa-00364e01.gslb.pphosted.com
MX Priorities
- mxa-00364e01.gslb.pphosted.com: 10
- mxb-00364e01.gslb.pphosted.com: 10
A / AAAA Records
- 162.159.138.64 (no PTR)
- 162.159.128.65 (no PTR)
Mail Server IPs
- 148.163.135.74 ↩ mx0a-00364e01.pphosted.com
SOA Record
Raw SOA
ext-ns1.columbia.edu hostmaster.columbia.edu 91574 3600 1800 2419200 300
Primary NS (mname)
ext-ns1.columbia.edu
Admin Email (rname)
hostmaster@columbia.edu
Serial
91574
Refresh
3600s
Retry
1800s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1.lse.ac.uk
ext-ns1.columbia.edu
auth2.dns.cogentco.com
auth1.dns.cogentco.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
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
27 records- adobe-idp-site-verification=c4c82a5f2bf3cc3ee4ad2ee246c28e17ead150faf152556bc9ca5c068762b827
- wpe-verification=cssrsprod
- ca3-154a83c0e9b44fa094af06b7a8c9f489
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- ZOOM_verify__tMWR0IkQ5mSUFNi7PT0-A
- rm_verify=cf192bfd71
- wpe-verification=ncdpcolumbia
- MS=ms32107722
- google-site-verification=B93x40FIZF4LI-5cayepjvuwU8ZodIQ09zIDG1gHtIc
- intersight=f68fd98601fae5dcfd60cd38f9df964367f5e3ebe94f0cc148eec13f7e11d7e6
- fastly-domain-delegation-columbia-323594-2020-12-07
- apple-domain-verification=6W1ObUreaMieGziS
- fastly-domain-delegation-UzZdOKwpsuzDObCLhWK0-12292020
- MS=ms94259742
- google-site-verification=6m_FjnmBT3E6N2cHMf6NxPjSVoWbq4IcRYNlAKT1Dzw
- docusign=abbafadf-a495-4889-935f-5fdac37be903
- google-site-verification=79W02b1NsvPOhVkXxG5gXzAXuxuYquPTXmx_l6KfRok
- ZOOM_verify_aIBp_UI9RA-_nAc54T9CiA
- ca3-018df5b7d38b415fbe9c920d89e3e815
- atlassian-domain-verification=TGY4izz2FIXsrTR48IJgpJMfixggF0xpHJ4TC91Ii5DqZYvIR3zflZ1zbdDNI3NN
- ZOOM_verify_ohdpGstzTlO2gNsWqnSiHQ
- ZOOM_verify_H76gKGnfTfSjo0uBs3ATpw
- atlassian-domain-verification=3a/aVmiVzaMOzlhAodx3n7lmq1cDotGOHNI3ehzFLzgN7YLZEBEjnxaaqyMmLY9s
- openai-domain-verification=dv-coLwtcZeuA8rWCUFNhz21TTz
- docusign=f8b82e15-b287-46b9-9729-a7436d71c422
- ZOOM_verify_ZJlClnqsRTqo4L8EQGaPDg
- MS=ms88535648
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