SSL-Tools

SSL check results of ciskom.de

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Discover if the mail servers for ciskom.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, 23 Jan 2025 13:42:38 +0000

We can not guarantee a secure connection to the mailservers of ciskom.de!

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

/mailservers/ciskom.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
ciskom.spdns.de
217.91.133.192
 10
supported
SMTP-Server
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s
ciskom-de.mail.protection.outlook.com
2a01:111:f403:ca04::c
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
2a01:111:f403:ca04::2
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
2a01:111:f403:ca09::
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
2a01:111:f403:ca04::b
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
52.101.68.25
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
52.101.73.19
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
52.101.73.21
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
ciskom-de.mail.protection.outlook.com
52.101.68.16
Results incomplete
20
supported
not checked
DANE
missing
PFS
not checked
Heartbleed
not vulnerable
Weak ciphers
not checked
1 s
relay.rzone.de
81.169.145.96
Results incomplete
100
supported
relay.rzone.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=SMTP-Server,C=DE

Certificate chain
  • SMTP-Server (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Unknown Authority
Subject
Country (C)
  • DE
Common Name (CN)
  • SMTP-Server
Issuer

Certificate is self-signed.

validity period
Not valid before
2022-01-18
Not valid after
2032-01-16
Fingerprints
SHA256
FE:CB:92:3C:DC:9F:6A:92:54:1B:0C:06:2C:00:29:9B:31:12:5F:9D:3B:9E:11:7F:9F:64:DC:8D:01:9B:59:35
SHA1
C0:93:74:BE:4A:88:3B:F6:C7:84:F9:0B:5D:B9:66:73:EA:A0:65:4C
X509v3 extensions
subjectKeyIdentifier
  • D1:D2:10:5E:C3:13:10:47:BD:F8:8E:3F:61:7F:54:B5:EC:6E:29:35
authorityKeyIdentifier
  • keyid:D1:D2:10:5E:C3:13:10:47:BD:F8:8E:3F:61:7F:54:B5:EC:6E:29:35
First seen at:

CN=relay.rzone.de,O=Strato AG,L=Berlin,ST=Berlin,C=DE

Certificate chain
Subject
Country (C)
  • DE
State (ST)
  • Berlin
Locality (L)
  • Berlin
Organization (O)
  • Strato AG
Common Name (CN)
  • relay.rzone.de
Alternative Names
  • relay.rzone.de
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • GeoTrust TLS RSA CA G1
validity period
Not valid before
2024-03-25
Not valid after
2025-03-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
A1:E9:C8:1D:C6:8E:EA:CB:30:C2:76:FB:BA:0E:08:2D:56:63:BC:E9:0A:0E:DB:9E:5F:0A:DF:7F:99:19:15:A4
SHA1
8F:C8:5A:6F:E2:0B:DC:EB:83:50:AB:EA:71:2E:EB:46:0E:C3:23:0C
X509v3 extensions
authorityKeyIdentifier
  • keyid:94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
  • 90:92:CD:92:E9:76:3A:A6:85:A9:A2:7F:30:03:90:E6:12:F5:A4:13
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
  • OCSP - URI:http://status.geotrust.com
  • CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
  • 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
  • Timestamp : Mar 25 06:32:12.823 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E1:63:96:33:C8:9D:CB:72:04:2E:BF:
  • 78:E9:AA:EE:D8:4B:29:37:61:02:1C:1D:6E:FC:DD:78:
  • 34:00:3D:AC:82:02:20:70:5C:3E:C7:50:2B:72:38:46:
  • C2:7E:7B:F5:08:3A:C8:C9:18:DE:0B:7D:58:94:B5:42:
  • 10:34:D7:61:21:D4:1D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
  • 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
  • Timestamp : Mar 25 06:32:12.878 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D9:CF:D9:31:DD:0B:16:79:98:F9:8C:
  • F4:44:3F:91:4C:C5:97:C9:0C:DA:C6:86:22:5C:B1:EC:
  • AE:76:42:EA:0F:02:21:00:8D:53:81:F9:5B:8C:4D:12:
  • 1A:60:6A:EF:EC:F4:F5:66:22:A4:15:04:E9:10:39:11:
  • 1B:BD:34:37:A0:73:07:9C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1:
  • D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50
  • Timestamp : Mar 25 06:32:12.900 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:66:66:80:15:50:6F:57:C5:61:AC:F3:24:
  • 92:62:24:BE:16:03:BB:64:A1:15:27:45:3F:2D:70:72:
  • 8C:ED:97:9F:02:20:24:49:D8:D6:0A:13:6B:F3:F0:1F:
  • 93:FB:98:BB:09:B1:D9:F2:EC:B8:68:9E:FA:63:54:B0:
  • 18:AD:B9:34:1F:70