SSL check results of sky-networks.de

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Discover if the mail servers for sky-networks.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

Report created Mon, 27 Jun 2022 18:02:42 +0000

The mailservers of sky-networks.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @sky-networks.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.sky-networks.de
2003:cd:3715:a900:211:32ff:feea:d948
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
7 s
mail.sky-networks.de
87.144.165.221
Results incomplete
10
supported
not checked
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
7 s
caesium.selfhost.de
2a00:d0c0:200::7868:35ff:fe1b:5ff3
50
supported
*.selfhost.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s
caesium.selfhost.de
185.26.156.237
50
supported
*.selfhost.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11 s

Outgoing Mails

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

Host TLS Version & Cipher
caesium.selfhost.de (185.26.156.237)
TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256

Certificates

First seen at:

CN=*.selfhost.de

Certificate chain
  • *.selfhost.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption

      • AlphaSSL CA - SHA256 - G2
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • GlobalSign (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha256WithRSAEncryption

Subject
Common Name (CN)
  • *.selfhost.de
Alternative Names
  • *.selfhost.de
  • selfhost.de
Issuer
Country (C)
  • BE
Organization (O)
  • GlobalSign nv-sa
Common Name (CN)
  • AlphaSSL CA - SHA256 - G2
validity period
Not valid before
2022-06-01
Not valid after
2023-07-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D4:7D:2B:60:09:3B:FB:BE:89:67:83:1E:F5:FD:32:B7:AE:86:4F:1D:F8:E4:61:44:EF:35:8E:E2:BB:F8:44:B8
SHA1
C3:6A:5B:51:F1:73:D5:AB:D4:D4:93:4B:EC:F3:5D:ED:8E:C4:74:42
X509v3 extensions
authorityInfoAccess
  • CA Issuers - URI:http://secure.globalsign.com/cacert/gsalphasha2g2r1.crt
  • OCSP - URI:http://ocsp2.globalsign.com/gsalphasha2g2
certificatePolicies
  • Policy: 1.3.6.1.4.1.4146.1.10.10
  • CPS: https://www.globalsign.com/repository/
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://crl.globalsign.com/gs/gsalphasha2g2.crl
authorityKeyIdentifier
  • keyid:F5:CD:D5:3C:08:50:F9:6A:4F:3A:B7:97:DA:56:83:E6:69:D2:68:F7
subjectKeyIdentifier
  • 59:63:02:88:BD:65:C0:D9:F2:76:09:01:3F:D0:5A:08:DB:E6:59:74
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
  • 03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
  • Timestamp : Jun 1 22:48:14.624 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1F:4E:DD:B5:D4:86:A6:B0:2C:31:E3:1C:
  • 03:DB:91:BF:79:AE:5D:98:CA:B0:46:12:B4:D4:DB:0D:
  • BE:9C:25:B9:02:20:3A:68:0E:3B:E4:73:51:73:8C:1F:
  • A0:F8:2F:17:F8:F3:26:C6:30:1F:70:CD:27:8A:EE:3D:
  • 05:03:5E:2A:0C:99
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Jun 1 22:48:14.121 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9E:A0:53:A4:21:D6:DD:F5:48:CE:14:
  • B6:F5:6F:B1:00:FD:6C:10:43:C0:3F:89:D4:52:01:66:
  • 3F:B1:15:5E:DB:02:21:00:C6:F6:8B:7E:01:AD:B6:8B:
  • DB:D0:7B:0C:98:C2:F0:3A:37:C4:54:B0:BF:03:17:A5:
  • 99:71:77:E3:74:C8:27:57
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
  • 4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
  • Timestamp : Jun 1 22:48:14.411 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:3F:78:1A:F2:E8:9C:A9:CE:DA:40:95:99:
  • 01:70:D3:86:0D:AD:05:7D:2B:E6:16:F9:9B:D3:95:7E:
  • 46:E0:B3:AC:02:21:00:CB:57:BB:55:0D:CD:DD:6C:8D:
  • CC:D7:1A:E8:D3:06:30:D6:C5:80:A0:80:9D:2B:8A:CB:
  • 67:F9:BB:74:6B:EA:61