SSL-Tools

SSL check results of dertepass.de

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Discover if the mail servers for dertepass.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, 14 Oct 2025 23:11:58 +0000

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

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

/mailservers/dertepass.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.dertepass.de
2003:a:215:8e00:52fb:74cc:d865:74ea
Results incomplete
5
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.dertepass.de
217.86.213.163
 5
supported
mail.dertepass.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.dertepass.de

Certificate chain
  • mail.dertepass.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R13
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.dertepass.de
Alternative Names
  • mail.dertepass.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R13
validity period
Not valid before
2025-10-13
Not valid after
2026-01-11
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
3C:E7:7C:B4:14:B0:67:7A:86:B8:ED:55:31:AB:E7:10:4E:A1:D4:07:59:50:92:8D:BD:1F:3C:54:B0:7E:A2:16
SHA1
DD:39:DD:08:89:10:6D:E3:51:DF:0E:92:E4:66:ED:BB:D8:C4:48:CA
X509v3 extensions
subjectKeyIdentifier
  • 2A:25:3A:8D:9D:61:71:3A:26:18:D3:A8:4F:0A:62:32:62:8E:12:D3
authorityKeyIdentifier
  • keyid:E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
authorityInfoAccess
  • CA Issuers - URI:http://r13.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r13.c.lencr.org/116.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB:
  • 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0
  • Timestamp : Oct 13 19:15:03.712 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F0:0F:38:F4:01:A8:30:54:C7:41:DA:
  • 1F:2A:BD:1D:1E:A1:9B:B9:3E:2F:AF:F8:5F:DD:54:D0:
  • 6B:C7:0D:0F:A7:02:21:00:96:93:4B:87:A3:44:02:F1:
  • 39:CD:7C:DC:9F:3E:DC:C7:83:5E:A0:25:4A:20:2C:94:
  • DF:F1:58:8A:B7:9D:0F:7A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 19:86:D4:C7:28:AA:6F:FE:BA:03:6F:78:2A:4D:01:91:
  • AA:CE:2D:72:31:0F:AE:CE:5D:70:41:2D:25:4C:C7:D4
  • Timestamp : Oct 13 19:15:05.725 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B1:09:54:DA:8C:F7:F8:A2:5F:D6:83:
  • BF:89:25:89:E3:1F:58:EF:22:35:A0:75:62:63:AF:B6:
  • F5:55:AC:DF:4F:02:21:00:F7:E6:A2:01:5A:7D:C2:7C:
  • 2D:48:97:1F:DF:6B:AA:08:2F:CC:0F:A2:3F:C3:15:90:
  • 9F:A7:7F:E7:14:41:DB:4C