SSL-Tools

SSL check results of mail.freifunk-nordheide.de

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Discover if the mail servers for mail.freifunk-nordheide.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 Sat, 25 Jan 2025 08:51:16 +0000

The mailservers of mail.freifunk-nordheide.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.freifunk-nordheide.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.freifunk-nordheide.de
51.89.44.242
 -
supported
mail.freifunk-nordheide.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 @mail.freifunk-nordheide.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.freifunk-nordheide.de

Certificate chain
  • mail.freifunk-nordheide.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.freifunk-nordheide.de
Alternative Names
  • mail.freifunk-nordheide.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-01-25
Not valid after
2025-04-25
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
06:26:AF:3D:4C:A3:FB:CD:63:A9:30:AE:FC:99:0B:4D:5A:D7:D4:7F:50:F4:3E:35:B0:3A:0A:AA:1F:30:EC:74
SHA1
33:67:CC:25:55:5F:31:97:0C:AA:45:78:E4:49:4A:ED:74:A8:EF:BC
X509v3 extensions
subjectKeyIdentifier
  • 82:37:21:A7:5F:9C:87:67:86:70:98:3A:58:F8:D9:68:2C:47:F8:E7
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • OCSP - URI:http://r11.o.lencr.org
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jan 25 08:50:17.899 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:28:64:FE:DF:5D:EB:02:CD:94:6A:18:56:
  • 76:0D:56:8A:FE:9A:17:A7:D1:FC:76:3C:C3:0A:7E:B7:
  • D3:5B:38:40:02:21:00:A9:4D:FA:96:02:0A:7F:52:01:
  • 7F:41:65:45:DA:3D:C9:76:90:74:A7:A6:B6:B6:4A:F7:
  • 4F:14:33:35:C7:BE:07
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DE:85:81:D7:50:24:7C:6B:CD:CB:AF:56:37:C5:E7:81:
  • C6:4C:E4:6E:D6:17:63:9F:8F:34:A7:26:C9:E2:BD:37
  • Timestamp : Jan 25 08:50:17.887 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:9F:A1:D5:34:CD:B5:AE:81:94:67:D2:
  • 40:21:4C:ED:0B:D3:4C:C3:C1:68:1C:F6:05:C2:13:E1:
  • AA:98:50:B4:16:02:20:35:77:A3:28:36:BA:AC:93:5F:
  • FB:50:7D:67:EA:E0:43:ED:64:6C:CC:E7:0E:51:30:2B:
  • C7:94:49:76:98:1A:B6