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SSL check results of siegismund-poschmann.de

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Discover if the mail servers for siegismund-poschmann.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 Mon, 08 Jun 2020 06:01:36 +0000

The mailservers of siegismund-poschmann.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @siegismund-poschmann.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.keks.cloud
2a01:4f8:1c1c:1506::1
 10
supported
mail.keks.cloud
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s
mail.keks.cloud
116.203.33.172
 10
supported
mail.keks.cloud
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.keks.cloud

Certificate chain
Subject
Common Name (CN)
  • mail.keks.cloud
Alternative Names
  • imap.keks.cloud
  • mail.keks.cloud
  • smtp.keks.cloud
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-06-06
Not valid after
2020-09-04
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
75:39:82:03:97:16:B8:1F:3E:C5:C1:AF:68:93:1D:A3:E4:28:D6:D2:61:E9:E9:04:CE:76:A0:8B:2B:18:CC:60
SHA1
A3:8A:6B:70:77:BA:A8:6B:CE:59:2E:8B:43:94:E7:AE:2A:9E:1B:06
X509v3 extensions
subjectKeyIdentifier
  • DA:33:32:16:D8:3E:1B:1A:ED:D9:B3:06:6F:5A:26:B0:74:FD:54:53
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • 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 6 01:16:59.551 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:54:16:65:F0:97:DF:53:EB:63:5D:5E:29:
  • D8:99:DB:1C:4C:FE:98:94:1C:B1:CC:94:F3:1F:C7:9A:
  • E7:13:D6:2C:02:21:00:A0:87:90:E9:57:CF:54:C7:61:
  • B7:FC:FA:2C:53:1F:D8:5B:5C:18:20:86:C2:DD:4B:06:
  • 9B:D2:ED:06:A3:FC:B7
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : Jun 6 01:16:59.496 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DB:2F:8C:91:17:12:CD:F5:A8:42:28:
  • 59:02:19:34:C8:7F:45:AB:6F:B7:E2:08:FA:72:E2:5E:
  • 0B:46:2A:B2:B0:02:21:00:C2:11:E5:2D:58:25:40:EB:
  • 1A:16:43:A5:B5:91:AC:17:32:25:5C:47:4D:A3:01:4E:
  • ED:5E:2D:5F:C0:29:5E:DD