SSL-Tools

SSL check results of sjtu.edu.cn

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Discover if the mail servers for sjtu.edu.cn can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

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Report created Thu, 13 Mar 2025 02:48:48 +0000

We can not guarantee a secure connection to the mailservers of sjtu.edu.cn!

Please contact the operator of sjtu.edu.cn and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/sjtu.edu.cn

Servers

Incoming Mails

These servers are responsible for incoming mails to @sjtu.edu.cn addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx01.sjtu.edu.cn
202.120.0.7
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
3 s
mx02.sjtu.edu.cn
202.120.0.8
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
2 s
mx04.sjtu.edu.cn
202.120.0.10
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mx03.sjtu.edu.cn
202.120.0.9
 20
supported
SJTUNIC
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
13 s

Outgoing Mails

We have not received any emails from a @sjtu.edu.cn address so far. Test mail delivery

Certificates

First seen at:

CN=SJTUNIC,OU=Network & Information Center,O=Shanghai Jiaotong University,L=Shanghai,ST=Shanghai,C=CN

Certificate chain
  • SJTUNIC (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Country (C)
  • CN
State (ST)
  • Shanghai
Locality (L)
  • Shanghai
Organization (O)
  • Shanghai Jiaotong University
Organizational Unit (OU)
  • Network & Information Center
Common Name (CN)
  • SJTUNIC
Issuer

Certificate is self-signed.

validity period
Not valid before
2024-09-25
Not valid after
2025-09-25
Fingerprints
SHA256
CE:C9:81:C2:68:8F:C5:84:5F:1A:22:3E:48:04:48:B4:2F:CD:6F:33:74:EE:95:01:5F:7E:AF:75:77:B9:DB:98
SHA1
B7:14:8F:6E:82:D1:2A:4B:0D:52:A1:56:C9:5C:D7:D1:6B:C8:99:A8
X509v3 extensions
subjectKeyIdentifier
  • 97:23:50:C4:2A:5C:9C:2C:74:B0:A2:52:E7:3B:92:26:4B:1E:E8:B4
authorityKeyIdentifier
  • keyid:97:23:50:C4:2A:5C:9C:2C:74:B0:A2:52:E7:3B:92:26:4B:1E:E8:B4