SSL-Tools

SSL check results of box.tuebingen.social

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Discover if the mail servers for box.tuebingen.social 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

JSON Refresh

Report created Mon, 20 Jan 2025 20:35:47 +0000

The mailservers of box.tuebingen.social can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @box.tuebingen.social addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
box.tuebingen.social
2a01:4f8:c0c:6bc1::1
 10
supported
box.tuebingen.social
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
box.tuebingen.social
116.203.146.179
 10
supported
box.tuebingen.social
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

We have not received any emails from a @box.tuebingen.social address so far. Test mail delivery

Certificates

First seen at:

CN=box.tuebingen.social

Certificate chain
  • box.tuebingen.social
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • box.tuebingen.social
Alternative Names
  • autoconfig.tuebingen.social
  • autodiscover.tuebingen.social
  • box.tuebingen.social
  • mta-sts.box.tuebingen.social
  • mta-sts.tuebingen.social
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-11-14
Not valid after
2025-02-12
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A5:32:A4:50:E9:9F:E9:4F:64:60:97:E1:84:9B:EC:DA:D8:09:65:09:A1:2E:AE:B7:5C:B6:EA:F0:1D:3D:75:39
SHA1
9A:BA:A7:00:92:B6:ED:EA:3A:FA:FA:88:36:24:18:37:09:E5:30:16
X509v3 extensions
subjectKeyIdentifier
  • 08:AD:60:71:A6:D9:FA:04:41:8B:F1:4D:2D:15:2D:F3:A8:04:7B:AB
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Nov 14 02:09:45.341 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:66:31:E0:A2:C4:6D:A7:8A:62:B5:2B:6B:
  • EC:AC:90:0D:1F:83:6E:0F:9A:4F:46:A5:C7:C0:18:88:
  • 38:6C:A3:0C:02:21:00:A0:C1:9C:9E:5C:16:94:6C:5B:
  • B0:11:65:92:BB:98:4D:43:16:F6:60:86:7B:0E:69:B8:
  • 00:0D:41:AF:E7:57:AB
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9:
  • 1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08
  • Timestamp : Nov 14 02:09:45.382 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D1:78:B9:AA:62:0B:AA:94:10:B1:B9:
  • 74:16:93:03:82:F6:0B:18:1C:03:BD:52:11:B0:BE:57:
  • 6A:32:B1:7C:69:02:21:00:B6:CD:F7:83:65:36:B3:3F:
  • FD:E9:D3:E2:07:34:C8:BB:E2:E0:97:67:D0:C2:C5:7B:
  • AC:C4:93:89:2D:04:9F:AC