SSL-Tools

SSL check results of koechr.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for koechr.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 Fri, 07 Aug 2026 11:26:05 +0000

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

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

/mailservers/koechr.de

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.koechr.de
193.34.145.200
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
tempmail.koechr.de
84.150.38.122
 20
supported
tempmail.koechr.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s

Outgoing Mails

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

Certificates

First seen at:

CN=tempmail.koechr.de

Certificate chain
  • tempmail.koechr.de
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE1
        • 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)
  • tempmail.koechr.de
Alternative Names
  • tempmail.koechr.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE1
validity period
Not valid before
2026-08-07
Not valid after
2026-11-05
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
E4:29:CC:26:6A:A1:DC:85:84:7D:68:AC:BA:82:D1:BD:D1:58:69:28:6E:DD:43:35:3B:85:1E:6F:31:B3:2A:20
SHA1
D0:31:2B:8B:5F:ED:4D:1A:1A:CF:55:2A:EC:5A:26:8A:12:37:E6:F6
X509v3 extensions
subjectKeyIdentifier
  • 67:CE:DD:97:00:CB:D7:D4:90:36:C5:C3:33:34:D2:39:16:64:A7:4F
authorityKeyIdentifier
  • keyid:BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityInfoAccess
  • CA Issuers - URI:http://ye1.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye1.c.lencr.org/59.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Aug 7 11:25:21.988 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F7:84:D7:5A:40:C8:A7:AF:48:C7:CA:
  • E5:11:D4:FE:41:3B:B4:E7:96:07:E1:39:B8:83:A5:37:
  • 65:48:AF:E2:A8:02:20:40:DB:29:16:39:0D:8A:7F:32:
  • 9B:EC:75:34:D5:51:BE:D0:83:1C:20:44:A6:F4:2E:CF:
  • A0:6A:6A:28:70:3E:F1
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0:
  • D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F
  • Timestamp : Aug 7 11:25:22.156 2026 GMT
  • Extensions: 00:00:05:00:10:33:3E:47
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:46:72:1B:89:AB:0C:A4:69:24:AB:7D:AE:
  • 8D:20:B3:58:5C:73:71:D3:16:2D:88:8F:68:AC:30:0C:
  • A9:D3:0C:90:02:21:00:D6:C0:7B:67:3F:F6:86:14:D1:
  • B2:28:D2:75:E6:69:D5:5D:3E:87:95:48:18:F7:45:70:
  • CB:5F:C8:67:27:47:DA