sjtu.edu.cn

Valid Email Server
Domain Lookup › sjtu.edu.cn

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
sjtu.edu.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-27 20:03:19 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mx04.sjtu.edu.cn
  • mx01.sjtu.edu.cn
  • mx03.sjtu.edu.cn
  • mx02.sjtu.edu.cn

MX Priorities

  • mx04.sjtu.edu.cn: 20
  • mx02.sjtu.edu.cn: 10
  • mx01.sjtu.edu.cn: 10
  • mx03.sjtu.edu.cn: 20

A / AAAA Records

  • 202.120.2.119 ↩ www.sjtu.edu.cn

Mail Server IPs

  • 202.120.0.10 (no PTR)
  • 202.120.0.8 ↩ mx02.sjtu.edu.cn
  • 202.120.0.7 ↩ mx01.sjtu.edu.cn
  • 202.120.0.9 ↩ mx03.sjtu.edu.cn

SOA Record

Raw SOA dns.sjtu.edu.cn hostmaster.sjtu.edu.cn 2607271831 10800 3600 604800 3600
Primary NS (mname)
dns.sjtu.edu.cn
Admin Email (rname)
hostmaster@sjtu.edu.cn
Serial
2607271831
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns.sjtu.edu.cn
apple.sjtu.edu.cn

SPF Record

✓ Strict (-all)
v=spf1 ip4:202.112.26.0/24 ip4:202.120.2.0/24 ip4:202.121.179.0/24 ip4:111.186.58.48 ip4:111.186.58.61 ip4:111.186.58.62 ip4:111.186.58.66 ip4:111.186.58.24 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 ip4:202.112.26.0/24 ip4:202.120.2.0/24 ip4:202.121.179.0/24 ip4:111.186.58.48 ip4:111.186.58.61 ip4:111.186.58.62 ip4:111.186.58.66 ip4:111.186.58.24 -all
  • ic14zi8kzf8g848uofs9wvk1s43dzz88
  • google-site-verification=mcuNzNPcotg0Umk8i7PNvtpd5_wDv6V-Q-Fo3vYMcxk
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 · Customize →
See demo & docs
Deep verification
Full email verification for sjtu.edu.cn

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

No credit card required
Get 1,000 Free Credits