SSL check results of premiumwerk.de

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Discover if the mail servers for premiumwerk.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, 24 Mar 2021 04:47:51 +0000

The mailservers of premiumwerk.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @premiumwerk.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.premiumwerk.de
87.139.50.235
10
supported
mail.premiumwerk.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 received emails from these servers with @premiumwerk.de sender addresses. Test mail delivery

Host TLS Version & Cipher
mail.premiumwerk.de (87.139.50.235)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=mail.premiumwerk.de

Certificate chain
  • mail.premiumwerk.de
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption

      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption

          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption

Subject
Common Name (CN)
  • mail.premiumwerk.de
Alternative Names
  • autodiscover.premiumwerk.de
  • mail.premiumwerk.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-03-24
Not valid after
2021-06-22
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
E8:82:88:A1:4D:71:A5:40:0B:B0:A2:34:61:F9:0D:BE:80:38:E8:51:B3:56:A3:57:3E:D5:D3:28:76:E1:D5:E6
SHA1
37:9F:93:AB:90:3D:51:2F:85:94:28:DC:80:4F:BD:A0:7F:23:C1:35
X509v3 extensions
subjectKeyIdentifier
  • D9:17:38:C4:CD:EA:04:46:0B:1A:18:5A:61:C9:F9:E6:56:75:5A:F7
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 : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
  • E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
  • Timestamp : Mar 24 04:47:09.268 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B0:E9:5C:F3:0F:16:90:D9:65:04:AC:
  • 34:E4:14:78:2C:1D:CC:32:91:12:CF:3D:B6:22:7F:54:
  • 75:A5:EE:8A:1E:02:20:6C:36:06:77:3B:C0:19:B5:7C:
  • AC:E4:64:86:4D:ED:08:0A:A8:CB:C2:CA:A8:70:DA:33:
  • B9:7B:02:D9:D1:CC:6E
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
  • DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
  • Timestamp : Mar 24 04:47:09.774 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:4C:BD:7A:14:9D:F1:F2:A4:9C:25:EC:BF:
  • B4:22:5D:7C:8E:4C:12:02:15:CF:0A:F8:BA:A7:52:26:
  • F0:DB:22:68:02:20:0A:00:6F:60:C6:55:4C:BD:6E:F6:
  • 9D:A5:B2:B9:82:D3:42:C9:D1:93:58:20:E0:BE:C0:25:
  • 7C:FA:F5:46:54:46