SSL-Tools

SSL check results of mail.freiberg-web.de

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Discover if the mail servers for mail.freiberg-web.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

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Report created Wed, 03 Jun 2026 12:20:27 +0000

The mailservers of mail.freiberg-web.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.freiberg-web.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.freiberg-web.de
193.254.190.111
 -
supported
mail.freiberg-web.de
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 @mail.freiberg-web.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.freiberg-web.de

Certificate chain
  • mail.freiberg-web.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R12
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.freiberg-web.de
Alternative Names
  • mail.freiberg-web.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R12
validity period
Not valid before
2026-05-06
Not valid after
2026-08-04
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
68:43:B4:B4:56:43:61:6E:49:CE:D6:53:94:79:11:9E:36:6F:D7:B4:B5:C4:E6:F2:F6:7E:BE:EC:88:ED:AE:D4
SHA1
9F:FF:0F:E7:46:1A:6F:AF:63:C0:20:76:C2:06:88:87:49:75:60:23
X509v3 extensions
subjectKeyIdentifier
  • 57:70:4A:D4:5D:92:F6:E2:19:A8:CD:0A:7F:2D:D4:09:CC:F1:4A:45
authorityKeyIdentifier
  • keyid:00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
  • CA Issuers - URI:http://r12.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r12.c.lencr.org/43.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 : May 6 22:42:41.163 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:27:92:73:B2:61:98:2C:41:AC:10:A2:D7:
  • D0:E5:C6:D8:E3:FE:78:52:7F:3F:D2:B6:76:D4:AC:0A:
  • 0E:67:10:8C:02:21:00:D3:AF:18:91:2E:61:CA:19:00:
  • ED:C3:C3:12:7F:77:BB:F9:73:FA:CD:3F:3A:15:DF:5F:
  • A5:A3:F7:B9:EF:51:2A
  • 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 : May 6 22:42:41.156 2026 GMT
  • Extensions: 00:00:05:00:0E:1A:6E:EE
  • Signature : ecdsa-with-SHA256
  • 30:43:02:20:45:5F:46:57:A6:77:8B:5E:7D:E2:90:41:
  • D9:4C:39:0E:9B:7A:A5:56:A9:37:9A:25:91:14:59:34:
  • E8:50:B8:89:02:1F:08:8F:07:6F:B0:E7:62:FB:DD:CE:
  • 6B:BC:52:83:94:60:01:4C:DC:9C:C4:77:D2:9A:F2:6C:
  • 51:C4:00:B5:1D