SSL-Tools

SSL check results of katjafoerster.de

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Discover if the mail servers for katjafoerster.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 Sat, 05 Sep 2026 00:30:45 +0000

The mailservers of katjafoerster.de can be reached through a secure connection.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
bastiandiehm.de
85.214.18.221
 10
supported
h2693992.stratoserver.net
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=h2693992.stratoserver.net

Certificate chain
  • h2693992.stratoserver.net
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE2
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • h2693992.stratoserver.net
Alternative Names
  • bastiandiehm.de
  • h2693992.stratoserver.net
  • katjafoerster.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE2
validity period
Not valid before
2026-08-27
Not valid after
2026-11-25
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
85:19:5D:28:85:A3:8F:37:5A:1C:ED:80:1F:C4:01:FD:34:30:AC:C1:19:1D:6E:36:B3:92:CA:49:B3:4C:5A:C8
SHA1
DA:87:B6:BC:A1:B7:4B:A5:5F:57:7A:83:94:8F:D9:98:47:6B:F5:5A
X509v3 extensions
subjectKeyIdentifier
  • B1:71:01:97:A7:92:17:F8:2B:7D:78:E1:1A:87:76:59:01:20:A8:63
authorityKeyIdentifier
  • keyid:B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87
authorityInfoAccess
  • CA Issuers - URI:http://ye2.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye2.c.lencr.org/69.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D:
  • E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A
  • Timestamp : Aug 27 21:28:13.589 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:85:48:D3:D5:09:8E:0E:95:E9:3E:6C:
  • AA:CD:C2:41:18:5B:E3:B2:1E:C2:2F:74:B5:7B:46:1D:
  • 2F:CD:D8:98:FF:02:20:4E:62:D8:42:ED:06:36:94:B1:
  • C7:77:EB:00:09:8F:A2:CD:98:91:24:4C:82:09:2C:24:
  • 5C:46:14:7D:F0:8D:15
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37:
  • 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23
  • Timestamp : Aug 27 21:28:11.891 2026 GMT
  • Extensions: 00:00:05:00:39:DE:06:9D
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:83:4B:D7:BD:9C:6D:31:AF:50:24:CA:
  • AE:3D:EF:AD:9C:24:3F:AA:BB:35:B8:F9:B1:63:A8:ED:
  • 5B:8F:D3:5A:67:02:21:00:CA:DD:A1:7F:AF:20:8B:4E:
  • A4:E9:A8:E1:A8:1B:BF:91:B7:D8:A7:8D:45:25:9F:94:
  • 1D:67:57:6E:45:94:19:8E