cs.stanford.edu

Valid Email Server
Domain Lookup › cs.stanford.edu
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
cs.stanford.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 20:26:33 UTC · ↺ Refresh

MX Hostnames

  • smtp2.cs.stanford.edu
  • cs.stanford.edu
  • smtp1.cs.stanford.edu

MX Priorities

  • cs.stanford.edu: 10
  • smtp2.cs.stanford.edu: 20
  • smtp1.cs.stanford.edu: 20

A / AAAA Records

  • 171.64.64.64 ↩ CS.stanford.edu

Mail Server IPs

  • 171.64.64.64 ↩ CS.stanford.edu
  • 171.64.64.26 ↩ smtp2.cs.stanford.edu
  • 171.64.64.25 ↩ smtp1.cs.stanford.edu

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a ip4:171.64.0.0/14 ip4:176.31.145.254 include:_spf.google.com include:_spf.elasticemail.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; pct=100; 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]
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No 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

2 records
  • google-site-verification=YIH2F20_EHKOHisVDZe512ysZEOoBNYp1OXPWwNK8XM
  • SPFv=spf1 mx a ip4:171.64.0.0/14 ip4:176.31.145.254 include:_spf.google.com include:_spf.elasticemail.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ~all
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 cs.stanford.edu

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

No credit card required
Get 1,000 Free Credits