SSL-Tools

SSL check results of refa-dachbau.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for refa-dachbau.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, 21 Dec 2024 01:30:26 +0000

The mailservers of refa-dachbau.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @refa-dachbau.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.refa-dachbau.de
217.92.127.213
 100
supported
mail.refa-dachbau.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
12 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.refa-dachbau.de

Certificate chain
  • mail.refa-dachbau.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.refa-dachbau.de
Alternative Names
  • autodiscover.refa-dachbau.de
  • mail.refa-dachbau.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2024-12-06
Not valid after
2025-03-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
BA:59:15:BE:2A:74:6F:CF:F5:CC:48:17:13:4C:93:A1:14:8B:27:55:85:AC:C9:3A:77:A7:E4:51:C1:4D:6D:70
SHA1
7E:55:A3:B4:6D:11:1B:97:24:D9:E3:09:6F:14:40:FC:C9:B4:38:77
X509v3 extensions
subjectKeyIdentifier
  • E3:BC:CA:ED:65:B8:1B:E9:88:97:5F:69:F2:5B:03:7B:78:D8:31:29
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.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 : Dec 6 11:46:46.000 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F6:AD:0B:5F:B6:0C:6F:09:67:9F:73:
  • A7:16:38:D5:45:92:F4:C9:58:50:5C:8D:E7:DA:AE:B4:
  • BC:44:87:F0:8B:02:21:00:C4:1F:0F:EC:F0:65:32:05:
  • 9C:13:89:19:56:FF:D7:47:DE:80:18:36:56:23:9E:8B:
  • DE:56:A6:04:A1:7D:04:D0
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 13:4A:DF:1A:B5:98:42:09:78:0C:6F:EF:4C:7A:91:A4:
  • 16:B7:23:49:CE:58:57:6A:DF:AE:DA:A7:C2:AB:E0:22
  • Timestamp : Dec 6 11:46:46.186 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:BD:00:DB:1A:49:D2:BD:E0:14:35:27:
  • AF:60:0E:7E:3B:55:E0:3D:CD:68:6F:0C:82:9A:03:F8:
  • 7D:2C:52:92:3E:02:21:00:F3:B9:44:A3:8E:C2:5E:10:
  • 27:D5:07:0C:FA:5B:78:92:2B:E3:56:AC:04:7B:D2:28:
  • EF:A1:1E:F6:83:F5:75:FE