SSL-Tools

SSL check results of br-tech.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for br-tech.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 Sun, 07 Sep 2025 00:30:54 +0000

We can not guarantee a secure connection to the mailservers of br-tech.de!

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

/mailservers/br-tech.de

Servers

Incoming Mails

These servers are responsible for incoming mails to @br-tech.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.br-tech.de
2a02:560:400a:b094:de39:6fff:fea3:e3d2
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.br-tech.de
81.14.231.247
 10
supported
mail.br-tech.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
3 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.br-tech.de

Certificate chain
  • mail.br-tech.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Expired
      • CA-BRTech (Certificate is self-signed.)
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
        • Expired
        • Unknown Authority
Subject
Common Name (CN)
  • mail.br-tech.de
Issuer
Common Name (CN)
  • CA-BRTech
validity period
Not valid before
2014-08-21
Not valid after
2024-08-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Client Authentication
Fingerprints
SHA256
29:11:F4:99:23:36:D6:74:6E:E5:B5:23:50:E4:E4:AB:58:E5:92:D3:38:ED:33:14:13:3C:D3:79:A0:AE:DB:FE
SHA1
82:EA:C6:C6:5C:26:3D:99:33:7D:C3:BB:FD:47:A8:B5:C9:68:D9:F4
X509v3 extensions
subjectKeyIdentifier
  • 2E:30:1F:72:3E:D2:7B:3A:AC:EC:E2:18:1E:13:C8:B8:EF:42:FF:77
authorityKeyIdentifier
  • keyid:5C:A8:4A:FB:92:E2:60:53:67:5B:57:8E:E4:19:F1:5B:A3:06:43:B5
  • DirName:/CN=CA-BRTech
  • serial:EC:F2:7B:B0:43:BA:6F:64