SSL-Tools

SSL check results of kasimos.de

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Discover if the mail servers for kasimos.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 Tue, 28 Jul 2026 09:21:37 +0000

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

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

/mailservers/kasimos.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.kasimos.de
2a03:4000:28:75b:8484:6dff:fe78:9746
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mail.kasimos.de
94.16.113.248
 10
supported
mail.kasimos.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.kasimos.de

Certificate chain
  • mail.kasimos.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      YR2
Subject
Common Name (CN)
  • mail.kasimos.de
Alternative Names
  • mail.kasimos.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YR2
validity period
Not valid before
2026-06-01
Not valid after
2026-08-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
ED:F4:60:33:4F:67:C5:45:65:CA:53:2E:AD:CF:4E:C7:14:82:E9:02:44:77:19:CF:B5:D7:AF:DA:A9:93:36:14
SHA1
B8:5F:1F:8D:01:AE:C7:87:60:4C:2A:E3:65:5B:D7:24:42:14:28:7C
X509v3 extensions
subjectKeyIdentifier
  • F9:FB:E9:CA:FA:D6:EC:E6:10:27:FC:E4:E5:37:17:52:E1:07:E8:03
authorityKeyIdentifier
  • keyid:40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
  • CA Issuers - URI:http://yr2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://yr2.c.lencr.org/9.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Jun 1 12:59:20.761 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:97:77:DF:E5:74:C9:A3:CF:E1:29:86:
  • 1D:A2:BB:BC:7A:B3:5C:24:A4:19:B2:AE:B4:5C:A5:92:
  • AF:CE:D6:A2:36:02:20:64:90:72:CB:A3:DA:00:87:36:
  • 74:59:10:C5:FE:2F:18:9E:99:C6:E3:E7:09:4D:DA:90:
  • 50:9E:C7:19:D0:63:81
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A8:26:CB:E3:0A:C6:35:12:46:53:3F:E0:65:F1:4F:19:
  • D9:6E:19:08:13:C4:1D:D9:6D:79:00:B3:12:3C:55:27
  • Timestamp : Jun 1 12:59:20.946 2026 GMT
  • Extensions: 00:00:05:00:0D:8F:3B:2A
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:60:6F:16:A3:4E:D7:2B:1A:58:9A:7F:B7:
  • 84:BB:C7:93:FD:CD:0A:F9:85:A2:78:DB:D4:F6:34:28:
  • 27:79:92:D1:02:21:00:D3:49:97:07:D8:6E:AD:BD:39:
  • 52:0D:8D:36:6E:4E:FD:52:B4:E4:D4:69:F1:7B:DD:77:
  • 7C:6A:5A:E4:12:91:FD