SSL-Tools

SSL check results of johannes-bochum.de

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Discover if the mail servers for johannes-bochum.de 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 Tue, 04 Aug 2026 07:57:21 +0000

We can not guarantee a secure connection to the mailservers of johannes-bochum.de!

Please contact the operator of johannes-bochum.de and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/johannes-bochum.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @johannes-bochum.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail3.johannes-bochum.de
62.154.223.211
 9
supported
sjs-exchange01
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
mail.johannes-bochum.de
87.139.246.98
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail2.johannes-bochum.de
62.154.223.210
Results incomplete
20 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

We have not received any emails from a @johannes-bochum.de address so far. Test mail delivery

Certificates

First seen at:

CN=sjs-exchange01.zentrale.st-johannes-stift-ev.de,CN=sjs-exchange01

Certificate chain
  • sjs-exchange01
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
      Zentrale-SJS-ADS02-CA
Subject
Common Name (CN)
  • sjs-exchange01
  • sjs-exchange01.zentrale.st-johannes-stift-ev.de
Common Name is not included in Alternative Names
Alternative Names
  • autodiscover.zentrale.st-johannes-stift-ev.de
  • autodiscover.st-johannes-stift-ev.de
  • mail.st-johannes-stift-ev.de
  • sjs-exchange01.st-johannes-stift-ev.de
  • sjs-exchange.zentrale.st-johannes-stift-ev.de
Issuer
Domain Component (DC)
  • de
  • St-Johannes-Stift-eV
  • Zentrale
Common Name (CN)
  • Zentrale-SJS-ADS02-CA
validity period
Not valid before
2025-11-10
Not valid after
2030-11-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
F6:90:4D:CA:DC:B7:FB:EA:05:34:29:E6:86:8D:AB:12:6C:08:19:1B:8C:55:86:41:E5:45:20:51:77:FF:6A:9D
SHA1
79:BD:3F:42:02:E5:1F:60:90:F0:46:E9:63:D8:FA:D8:7B:C0:AE:CB
X509v3 extensions
1_3_6_1_4_1_311_21_7
  • 0-.%+.....7.....E...x...1.......J+...t.....d...
1_3_6_1_4_1_311_21_10
  • 0.0
  • ..+.......
SMIME-CAPS
  • 0..0...`.H.e...*0...`.H.e...-0...`.H.e....0...`.H.e....0...`.H.e....0...`.H.e....0
  • ..*.H.. ..0...+....0...*.H.. ......0...*.H.. ......
subjectKeyIdentifier
  • BD:BD:7B:69:9D:56:0A:DC:69:CB:43:E6:52:3A:D4:4B:96:D4:9C:8E
authorityKeyIdentifier
  • keyid:C7:03:BD:94:99:87:CD:C4:C4:AB:75:97:3A:A6:8E:27:78:21:7F:DC
crlDistributionPoints
  • Full Name:
  • URI:ldap:///CN=Zentrale-SJS-ADS02-CA(1),CN=sjs-ads03,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=Zentrale,DC=St-Johannes-Stift-eV,DC=de?certificateRevocationList?base?objectClass=cRLDistributionPoint
authorityInfoAccess
  • CA Issuers - URI:ldap:///CN=Zentrale-SJS-ADS02-CA,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=Zentrale,DC=St-Johannes-Stift-eV,DC=de?cACertificate?base?objectClass=certificationAuthority