SSL-Tools

SSL check results of kvnbw.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for kvnbw.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

JSON Refresh

Report created Thu, 12 Oct 2023 07:09:55 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx3.kvnbw.de
194.59.36.55
 10
supported
mx3.kvnbw.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s
mx2.kvnbw.de
194.0.94.39
 10
supported
mx2.kvnbw.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx1.kvnbw.de
194.0.94.38
 10
supported
mx1.kvnbw.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mx4.kvnbw.de
194.59.36.56
 10
supported
mx4.kvnbw.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx3.kvnbw.de,O=Komm.ONE Anstalt des öffentlichen Rechts,L=Stuttgart,ST=Baden-Württemberg,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Baden-Württemberg
Locality (L)
  • Stuttgart
Organization (O)
  • Komm.ONE Anstalt des öffentlichen Rechts
Common Name (CN)
  • mx3.kvnbw.de
Alternative Names
  • mx3.kvnbw.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign RSA OV SSL CA 2018
validity period
Not valid before
2023-03-27
Not valid after
2024-04-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
93:34:98:DA:B7:D9:30:58:D0:DF:3A:D9:D9:69:2C:6D:98:5A:E2:4F:00:EF:45:41:E1:CB:4C:76:29:59:08:30
SHA1
41:13:85:14:34:37:27:10:5C:30:5B:CE:91:8B:0B:40:98:19:70:AE
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.20
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
authorityKeyIdentifier
  • keyid:F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
  • 54:E5:31:9D:DF:A8:A1:B9:5E:F1:61:B5:B7:29:2C:68:B5:D9:98:D6
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 73:D9:9E:89:1B:4C:96:78:A0:20:7D:47:9D:E6:B2:C6:
  • 1C:D0:51:5E:71:19:2A:8C:6B:80:10:7A:C1:77:72:B5
  • Timestamp : Mar 27 10:33:12.940 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:23:F7:52:F6:BF:16:79:44:CD:E1:5A:79:
  • 10:06:ED:D2:9A:DE:7A:3A:DB:A8:A9:D2:64:D8:9B:CB:
  • A3:EC:F7:F8:02:20:68:F9:1C:73:64:99:AB:2B:3A:A3:
  • 15:5C:E2:6F:F6:5C:E7:91:32:19:68:66:33:F8:60:97:
  • 59:91:B2:4E:F2:76
  • 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 27 10:33:12.936 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:21:11:CA:CF:A0:8D:F0:39:4F:DA:AB:39:
  • 3A:AE:6F:E0:22:18:54:75:7E:0E:C7:F6:2C:EE:2A:83:
  • 83:BF:13:E2:02:21:00:AD:6C:BF:0A:09:0B:73:B4:D5:
  • 11:65:A9:C2:78:35:6D:24:5C:0D:80:6F:2C:DA:55:05:
  • DA:8A:EF:8B:B8:2D:3F
  • 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 27 10:33:12.529 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:90:33:83:30:41:E1:7B:E4:3F:3E:A8:
  • 21:64:BD:99:B5:D2:37:34:4D:2F:ED:EC:B8:4D:6E:3B:
  • 94:69:14:26:4F:02:20:0F:A4:01:6D:B5:63:34:74:21:
  • E8:E4:92:E5:AA:31:5A:1B:6D:A7:CE:9E:00:E5:13:BB:
  • B2:76:4E:10:28:FC:B8
First seen at:

CN=mx2.kvnbw.de,O=Komm.ONE Anstalt des öffentlichen Rechts,L=Stuttgart,ST=Baden-Württemberg,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Baden-Württemberg
Locality (L)
  • Stuttgart
Organization (O)
  • Komm.ONE Anstalt des öffentlichen Rechts
Common Name (CN)
  • mx2.kvnbw.de
Alternative Names
  • mx2.kvnbw.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign RSA OV SSL CA 2018
validity period
Not valid before
2023-03-27
Not valid after
2024-04-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D5:48:C0:3F:C7:57:5E:60:FE:23:C9:2E:7A:E5:06:3B:0B:41:71:23:7A:61:A6:B1:8F:7B:AD:CB:67:91:6E:2D
SHA1
D6:5C:E4:B2:79:71:7B:D4:51:B3:FA:ED:5F:59:CB:CD:DE:0D:DC:EF
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.20
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
authorityKeyIdentifier
  • keyid:F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
  • 26:7F:72:36:AA:8B:8C:6A:AD:8E:65:4F:89:37:24:A1:16:62:CF:81
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 73:D9:9E:89:1B:4C:96:78:A0:20:7D:47:9D:E6:B2:C6:
  • 1C:D0:51:5E:71:19:2A:8C:6B:80:10:7A:C1:77:72:B5
  • Timestamp : Mar 27 10:34:46.840 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F2:33:E5:78:DE:1E:36:53:87:1C:F7:
  • 0D:D1:CD:E8:27:2D:4A:FC:B5:A8:31:9C:50:42:2F:D7:
  • 36:DB:D4:B6:96:02:21:00:C5:46:50:7F:78:A4:36:2F:
  • 47:FF:D5:10:2A:A7:84:CC:F3:82:92:D6:3C:96:43:88:
  • D1:9B:CF:AD:03:77:A1:55
  • 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 27 10:34:46.954 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:5D:F8:37:A4:C5:36:E9:5A:DD:E1:6F:56:
  • C2:C5:26:DE:D3:00:EA:6C:82:24:9F:49:09:0F:A0:F4:
  • BB:03:6F:35:02:21:00:D5:1F:81:3E:EC:48:B3:5D:88:
  • DD:3D:97:66:CE:92:34:43:47:BD:12:7D:07:1A:21:1C:
  • 8E:10:89:2F:50:94:D8
  • 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 27 10:34:46.783 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:8D:F5:65:38:9B:40:A7:2C:C0:5E:0C:
  • 89:C0:A2:9A:38:C8:3A:E3:03:97:35:2F:9B:E0:55:D3:
  • 88:F9:18:CE:AF:02:21:00:CE:99:C9:79:91:F4:17:F8:
  • 47:6E:92:87:7F:9F:50:A5:16:E6:FE:DA:02:0C:8F:60:
  • 6E:C9:67:96:D2:C4:97:16
First seen at:

CN=mx1.kvnbw.de,O=Komm.ONE Anstalt des öffentlichen Rechts,L=Stuttgart,ST=Baden-Württemberg,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Baden-Württemberg
Locality (L)
  • Stuttgart
Organization (O)
  • Komm.ONE Anstalt des öffentlichen Rechts
Common Name (CN)
  • mx1.kvnbw.de
Alternative Names
  • mx1.kvnbw.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign RSA OV SSL CA 2018
validity period
Not valid before
2023-03-27
Not valid after
2024-04-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
7C:CD:ED:6B:1C:4C:F4:9D:D1:56:92:F8:21:3A:10:D4:7B:4C:48:33:7E:52:0E:77:4A:6B:EC:B6:47:78:F0:BD
SHA1
FF:FC:24:97:FC:F0:48:C9:59:A4:0C:67:14:9C:79:7E:2B:0B:18:E6
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.20
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
authorityKeyIdentifier
  • keyid:F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
  • 43:18:53:8A:3E:2F:52:07:24:21:43:60:4C:33:CA:4E:33:83:1B:26
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 27 10:34:05.440 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:15:E6:B1:B5:AD:50:33:57:F1:A7:7B:C0:
  • D0:D8:84:CC:1E:D0:55:D6:C6:50:9F:5F:E1:C7:9D:F4:
  • 83:94:C8:B3:02:20:51:DF:7C:AA:48:CC:BF:F5:83:E3:
  • 1C:67:BF:90:22:FC:41:BE:71:4F:8F:3E:9D:D4:84:ED:
  • 3A:3E:EA:CC:9A:B7
  • 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 27 10:34:05.854 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:5A:9D:26:AA:15:92:22:24:69:2A:BE:75:
  • C6:6A:D4:9E:7D:C3:4C:78:61:4D:9F:A8:74:2E:EC:56:
  • 7E:2A:5D:C9:02:20:5D:D8:3B:B6:61:99:5A:60:AC:0F:
  • 95:E6:58:91:F4:35:FE:5F:55:98:7D:E3:00:49:F5:E6:
  • 73:F0:D7:0B:92:53
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
  • 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
  • Timestamp : Mar 27 10:34:05.125 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:FD:09:41:D7:D5:02:94:63:40:48:69:
  • 14:76:37:35:84:80:84:AA:63:8D:9E:37:A6:3F:1B:94:
  • 67:17:BB:72:6B:02:21:00:C1:4F:AA:FB:65:2A:FA:6D:
  • 50:40:9E:94:41:A3:DA:65:A6:32:63:51:17:A2:3D:BE:
  • 5D:CF:94:E7:D4:DF:99:81
First seen at:

CN=mx4.kvnbw.de,O=Komm.ONE Anstalt des öffentlichen Rechts,L=Stuttgart,ST=Baden-Württemberg,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Baden-Württemberg
Locality (L)
  • Stuttgart
Organization (O)
  • Komm.ONE Anstalt des öffentlichen Rechts
Common Name (CN)
  • mx4.kvnbw.de
Alternative Names
  • mx4.kvnbw.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • GlobalSign RSA OV SSL CA 2018
validity period
Not valid before
2023-03-27
Not valid after
2024-04-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A0:71:47:39:AB:E0:F5:05:48:CC:48:BC:A5:B2:82:16:F6:A4:80:DC:73:07:66:67:B2:C6:85:CB:C4:A6:65:C2
SHA1
00:43:53:D6:65:15:B8:B8:30:E0:D2:77:E9:4D:71:2F:89:FE:63:8C
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt
  • OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.20
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.2
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gsrsaovsslca2018.crl
authorityKeyIdentifier
  • keyid:F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
  • 41:87:44:56:A8:A6:DF:CE:36:08:A1:9E:61:B7:01:3F:C6:60:9A:1C
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 73:D9:9E:89:1B:4C:96:78:A0:20:7D:47:9D:E6:B2:C6:
  • 1C:D0:51:5E:71:19:2A:8C:6B:80:10:7A:C1:77:72:B5
  • Timestamp : Mar 27 10:32:34.622 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:15:57:19:EA:71:F7:5F:6A:D0:1B:50:9A:
  • ED:D6:52:CC:5B:CF:2C:C9:4F:06:DE:0B:45:5C:00:39:
  • C3:52:A6:79:02:20:10:95:C8:CF:22:C4:51:F7:58:9F:
  • DD:AA:F9:C0:5F:53:9E:CE:DC:D9:F3:A0:96:4C:8C:C8:
  • 22:43:DE:59:4B:A6
  • 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 27 10:32:35.353 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:2F:B3:A2:BF:30:4B:09:4B:97:4A:61:D6:
  • F7:24:CA:02:74:ED:77:CB:67:3F:1A:04:61:F8:96:30:
  • C6:DF:AB:E0:02:21:00:93:40:69:8F:97:76:31:8E:2C:
  • 79:4E:50:49:4B:68:65:39:92:42:A6:8E:A7:62:29:4B:
  • 44:6C:19:E2:8C:52:3E
  • 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 27 10:32:34.591 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:22:EA:E0:AD:F6:ED:09:18:03:E4:FA:6A:
  • E2:AE:9C:59:85:E7:CC:99:A1:2A:B0:BB:FA:CB:EF:F9:
  • 8F:0C:41:93:02:20:4F:BE:A2:B1:62:90:E6:EA:7B:F3:
  • CE:72:98:D5:70:DF:32:D1:DD:1D:11:2D:8D:88:7A:E2:
  • 31:6B:49:1C:94:DB