ntu.edu.tw

Valid Email Server
Domain Lookup › ntu.edu.tw

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ntu.edu.tw
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-30 06:05:29 UTC · ↺ Refresh

MX Hostnames

  • mgw.ntu.edu.tw

MX Priorities

  • mgw.ntu.edu.tw: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 140.112.8.25 ↩ mgw.ntu.edu.tw

SOA Record

Raw SOA dns.ntu.edu.tw postmaster.ntu.edu.tw 2026032601 7200 3600 604800 14400
Primary NS (mname)
dns.ntu.edu.tw
Admin Email (rname)
postmaster@ntu.edu.tw
Serial
2026032601
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
14400s

Nameservers (NS)

dns.ntu.edu.tw
ntu3.ntu.edu.tw

SPF Record

✓ Soft Fail (~all)
v=spf1 a:mail.ntu.edu.tw a:ccms.ntu.edu.tw a:msa.ntu.edu.tw a:smtps.ntu.edu.tw a:wmail1.cc.ntu.edu.tw a:ccsun55.cc.ntu.edu.tw a:v236.cc.ntu.edu.tw a:myntu-smtp.ntu.edu.tw ip4:140.112.254.32/28 ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

7 records
  • pzVXbMgXogYvYNgSSlOlVRR1wClpA7I0hxpImLZ86WE
  • MS=ms27735216
  • google-site-verification=4o6Kfyd74ItrKV4aAfgGVosb5h4tPIomHf3bx6A7SfI
  • izdpbvk+XSnOw656bWQwMON3JSxxraiL3DHEigt3QQPTF+GXtWN+EBx1QoaUb4/rh201r9FPk5VgE/dxzJIKXQ==
  • chtsec_phishing_test=gw7m0XptC0fPWpbNEQm0V3L0wgUdk-d_
  • SPFv=spf1 a:mail.ntu.edu.tw a:ccms.ntu.edu.tw a:msa.ntu.edu.tw a:smtps.ntu.edu.tw a:wmail1.cc.ntu.edu.tw a:ccsun55.cc.ntu.edu.tw a:v236.cc.ntu.edu.tw a:myntu-smtp.ntu.edu.tw ip4:140.112.254.32/28 ~all
  • cisco-ci-domain-verification=5ddaa92ada315bc668bf59596703adc2135fb9dd70b1acb95b82537d3da9024e
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 ntu.edu.tw

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

No credit card required
Get 1,000 Free Credits