Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
cvn.columbia.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 22:55:21 UTC · ↺ Refresh
MX Hostnames
- mxa-00364e01.gslb.pphosted.com
- mxb-00364e01.gslb.pphosted.com
MX Priorities
- mxa-00364e01.gslb.pphosted.com: 10
- mxb-00364e01.gslb.pphosted.com: 10
A / AAAA Records
- 162.159.128.64 (no PTR)
- 162.159.128.65 (no PTR)
- 162.159.138.64 (no PTR)
Mail Server IPs
- 148.163.135.74 ↩ mx0a-00364e01.pphosted.com
- 148.163.139.74 ↩ mx0b-00364e01.pphosted.com
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
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
~ Quarantine
v=DMARC1; p=quarantine; fo=1; pct=30; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 30% of failing messages only
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
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