SSL check results of r-b-bau-profi.de

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Discover if the mail servers for r-b-bau-profi.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

Report created Wed, 22 Jan 2025 18:12:19 +0000

The mailservers of r-b-bau-profi.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @r-b-bau-profi.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.r-b-bau-profi.de
2a01:4f9:3051:43af::2
10
supported
mail.r-b-bau-profi.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s
mail.r-b-bau-profi.de
65.109.89.96
10
supported
mail.r-b-bau-profi.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 @r-b-bau-profi.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.r-b-bau-profi.de

Certificate chain
  • mail.r-b-bau-profi.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.r-b-bau-profi.de
Alternative Names
  • mail.r-b-bau-profi.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2024-11-21
Not valid after
2025-02-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
CD:07:28:F7:FE:B3:27:5E:12:1A:73:27:9D:8A:6D:08:E4:58:C4:12:5D:39:53:90:3F:12:1C:3A:51:FE:FC:1A
SHA1
40:87:92:8B:32:8F:CC:F0:39:76:7D:6C:2A:50:A7:75:02:E6:43:FB
X509v3 extensions
subjectKeyIdentifier
  • D3:73:6D:AB:0E:53:41:4B:04:3F:6C:C2:8B:64:74:6E:F1:F4:2D:15
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 : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Nov 21 09:45:11.771 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:3E:46:66:7D:B0:4C:04:C0:89:E1:7B:04:
  • DB:07:B4:1A:5E:3D:DF:7D:3B:3C:72:8F:98:4C:B8:E0:
  • 13:BA:DC:4C:02:21:00:97:0D:BC:77:C5:72:82:94:50:
  • 1F:D8:78:11:3B:2D:57:1B:AB:4A:BF:DF:41:C5:AB:89:
  • 14:31:C1:E4:B7:E0:D5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E0:92:B3:FC:0C:1D:C8:E7:68:36:1F:DE:61:B9:96:4D:
  • 0A:52:78:19:8A:72:D6:72:C4:B0:4D:A5:6D:6F:54:04
  • Timestamp : Nov 21 09:45:11.777 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1D:7C:74:EC:B0:EC:B0:3C:A8:9D:E9:C5:
  • B4:CF:72:52:7A:57:D9:3F:B9:D5:16:35:E0:09:76:18:
  • 26:99:B7:05:02:20:7C:8D:77:39:2C:F6:DE:D1:10:D7:
  • 40:AB:0E:77:2C:86:9B:20:4C:7D:40:C1:2A:17:C1:8A:
  • 6C:1F:AB:59:68:CC