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SSL check results of nibis.de

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Discover if the mail servers for nibis.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 Fri, 19 Apr 2024 11:14:08 +0000

The mailservers of nibis.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @nibis.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail-in1.nibis.de
213.23.76.120
 10
supported
mail-in1.nibis.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s
mail-in2.nibis.de
213.23.76.130
 10
supported
mail-in2.nibis.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

We have received emails from these servers with @nibis.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mail-out1.nibis.de (213.23.76.121)
TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256

Certificates

First seen at:

CN=mail-in1.nibis.de

Certificate chain
  • mail-in1.nibis.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail-in1.nibis.de
Alternative Names
  • mail-in1.nibis.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-03-19
Not valid after
2024-06-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
7E:0C:BC:BE:37:AE:1A:32:53:4A:CC:58:4C:CD:80:76:35:BB:AD:3B:93:DF:84:27:EB:FD:FF:21:DC:51:63:6C
SHA1
AE:A7:75:C5:F0:9C:B8:B0:8B:64:B8:BF:17:B2:37:FA:4E:76:E7:58
X509v3 extensions
subjectKeyIdentifier
  • E5:2B:A3:81:B5:A8:91:85:60:A5:93:97:B4:DE:A1:FC:76:0A:B3:4B
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Mar 19 18:16:11.369 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6D:09:00:DA:58:A8:7A:D0:B8:11:42:82:
  • 1B:19:29:62:9E:EC:61:1B:3A:5F:7A:22:34:FF:7C:DE:
  • DD:E0:0B:16:02:21:00:C4:E9:79:B2:96:C1:D4:B2:F5:
  • 3A:7D:3E:F5:64:67:26:6C:12:15:65:B4:9E:3D:E4:9F:
  • 83:4B:3D:A8:B2:E7:A3
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Mar 19 18:16:11.361 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E5:9A:C5:A9:10:7D:7D:99:2D:C9:8E:
  • 63:60:0B:27:F1:1C:D9:38:03:03:D7:F0:59:31:11:52:
  • 3E:CF:C3:D5:FA:02:20:7A:5A:20:D2:C4:51:E3:B5:FE:
  • 4B:B2:26:17:ED:BB:80:73:45:FD:0B:7B:18:94:CC:B8:
  • CA:49:6D:B2:45:6A:5B
First seen at:

CN=mail-in2.nibis.de

Certificate chain
  • mail-in2.nibis.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail-in2.nibis.de
Alternative Names
  • mail-in2.nibis.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-03-19
Not valid after
2024-06-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
5C:9C:F6:5D:36:B6:32:39:97:3C:40:4A:E9:4C:92:57:CB:7A:DD:73:75:B9:9A:B3:14:F2:70:42:25:76:E6:12
SHA1
1B:1F:FF:3C:F8:68:D7:72:C8:AF:0B:99:4D:49:18:FF:61:8A:99:14
X509v3 extensions
subjectKeyIdentifier
  • BC:29:A0:A1:B5:CB:63:35:D0:BA:59:00:0E:F4:3D:6C:FC:5D:6C:DE
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
  • 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
  • Timestamp : Mar 19 18:21:27.239 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:CC:53:09:6E:C4:82:F1:FF:E3:34:70:
  • A3:8E:D4:35:67:CF:E0:F1:7B:AF:99:96:1C:2F:A2:9F:
  • 4A:45:29:5C:12:02:20:32:8A:96:07:CD:BE:6D:CC:A9:
  • 4A:73:53:43:B1:FA:1D:5E:72:99:22:DC:74:18:9F:45:
  • E0:B1:79:AE:38:D2:52
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
  • 32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
  • Timestamp : Mar 19 18:21:27.258 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2E:B2:ED:F5:14:DC:AB:F0:FE:3E:5A:C0:
  • C0:15:69:04:8E:D1:E3:97:ED:3E:92:4F:43:E6:EB:27:
  • E8:44:9E:3E:02:21:00:FC:47:7E:9D:AD:13:AA:70:02:
  • 87:AE:8C:39:6A:5B:41:FF:1D:C3:00:A7:85:D3:B1:6C:
  • DC:D8:04:3D:63:79:04