SSL-Tools

SSL check results of cotse.net

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Discover if the mail servers for cotse.net 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, 04 Jun 2020 00:03:58 +0000

The mailservers of cotse.net can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cotse.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.cotse.net
66.203.85.58
 10
supported
mail.cotse.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.cotse.net,OU=PositiveSSL Multi-Domain,OU=Domain Control Validated

Certificate chain
  • mail.cotse.net
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      Sectigo RSA Domain Validation Secure Server CA
Subject
Organizational Unit (OU)
  • Domain Control Validated
  • PositiveSSL Multi-Domain
Common Name (CN)
  • mail.cotse.net
Alternative Names
  • mail.cotse.net
  • mail.identicloak.com
  • mail.packetderm.com
Issuer
Country (C)
  • GB
State (ST)
  • Greater Manchester
Locality (L)
  • Salford
Organization (O)
  • Sectigo Limited
Common Name (CN)
  • Sectigo RSA Domain Validation Secure Server CA
validity period
Not valid before
2019-01-18
Not valid after
2021-04-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
FB:1A:F0:BC:A9:EC:0C:05:06:D0:E1:BE:19:D1:53:E9:AE:E8:F7:0F:11:4D:15:21:18:C5:64:A1:52:6F:7A:58
SHA1
32:75:7C:33:78:52:E0:FE:FE:67:8F:B3:E5:88:63:7B:3A:40:C8:FB
X509v3 extensions
authorityKeyIdentifier
  • keyid:8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
subjectKeyIdentifier
  • 60:3A:3F:62:5D:3B:AC:4A:37:E3:14:9B:69:B2:AE:F9:C1:A8:BC:F3
certificatePolicies
  • Policy: 1.3.6.1.4.1.6449.1.2.2.7
  • CPS: https://sectigo.com/CPS
  • Policy: 2.23.140.1.2.1
authorityInfoAccess
  • CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
  • OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : BB:D9:DF:BC:1F:8A:71:B5:93:94:23:97:AA:92:7B:47:
  • 38:57:95:0A:AB:52:E8:1A:90:96:64:36:8E:1E:D1:85
  • Timestamp : Jan 18 19:03:44.939 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B2:A5:95:4B:94:C1:D8:C1:B3:32:B7:
  • FA:C6:EF:72:58:C4:87:4B:EF:FF:91:5D:38:8D:5F:CC:
  • 69:B3:C4:FB:86:02:20:4D:35:A1:94:C8:DD:6D:28:91:
  • 22:A0:74:68:7D:69:D9:13:DB:DC:3B:9F:FC:D0:F9:E2:
  • C4:2C:5E:3E:19:D7:14
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Jan 18 19:03:45.014 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:AD:D3:67:2B:2A:50:65:EB:3C:CB:54:
  • E1:2B:7D:7D:BE:DB:DD:2B:67:65:22:72:7F:AA:9E:28:
  • 6C:40:0C:AC:90:02:20:6D:A5:4E:AC:AF:ED:40:DA:C0:
  • 79:11:70:48:48:F5:3B:26:2A:F4:B0:D0:B5:B9:2D:A9:
  • 4F:91:FF:B7:FF:F2:CB
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
  • 37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
  • Timestamp : Jan 18 19:03:45.026 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:82:3B:63:6B:97:56:43:3E:46:95:9A:
  • 0C:DF:7C:6F:94:CC:FB:61:A2:38:D1:C3:CA:DD:68:DD:
  • 1D:AD:22:8D:52:02:21:00:F7:A9:DF:0F:DA:A6:87:64:
  • 51:B4:8C:D6:E7:B1:BD:85:67:FC:46:73:C1:B8:89:FC:
  • 12:CE:3C:C8:42:98:A1:5F