SSL check results of blans-online.de

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Discover if the mail servers for blans-online.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 Thu, 25 May 2023 09:18:54 +0000

The mailservers of blans-online.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @blans-online.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.blans-online.de
185.228.139.164
10
supported
mail.blans-online.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 @blans-online.de address so far. Test mail delivery

Certificates

First seen at:

CN=mail.blans-online.de

Certificate chain
  • mail.blans-online.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption

Subject
Common Name (CN)
  • mail.blans-online.de
Alternative Names
  • mail.blans-online.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2023-05-05
Not valid after
2023-08-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D1:93:68:DF:76:CE:98:71:41:04:E0:09:A0:8D:75:E3:E0:CE:A0:4A:0D:DD:CA:16:FE:CC:9F:3B:1E:7E:40:DE
SHA1
E2:D4:96:82:B7:1B:B1:EF:FD:56:C5:BD:C8:E5:F9:7F:8B:4E:49:C1
X509v3 extensions
subjectKeyIdentifier
  • 2E:2F:19:3B:25:CA:B2:6A:E5:26:F5:DC:1E:38:DB:74:81:53:2C:12
authorityKeyIdentifier
  • keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
authorityInfoAccess
  • OCSP - URI:http://r3.o.lencr.org
  • CA Issuers - URI:http://r3.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B7:3E:FB:24:DF:9C:4D:BA:75:F2:39:C5:BA:58:F4:6C:
  • 5D:FC:42:CF:7A:9F:35:C4:9E:1D:09:81:25:ED:B4:99
  • Timestamp : May 5 01:04:27.841 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E6:A0:A3:4A:89:16:C3:C2:5B:4F:60:
  • 72:8C:1A:83:A6:95:A1:15:27:BE:FF:74:76:16:0A:3B:
  • CD:DD:9A:7C:62:02:20:58:F2:35:D1:6C:47:94:A8:2A:
  • 3B:A1:56:84:45:4E:98:0F:02:B4:91:9F:0D:C5:EE:CE:
  • A2:9B:86:3D:40:38:0B
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
  • 16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
  • Timestamp : May 5 01:04:27.870 2023 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:04:F5:B9:77:66:B8:4B:77:AC:E0:63:1B:
  • 77:4B:F4:D1:D3:FC:21:3D:ED:48:3A:01:DA:6C:93:C8:
  • A6:61:C0:A1:02:20:6E:F0:19:95:D5:AA:37:7D:1C:6E:
  • D0:F4:75:AA:72:CC:5A:0A:BA:2A:9B:06:3E:5B:29:C3:
  • 4F:19:50:8A:60:00