SSL-Tools

SSL check results of sendnix.de

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Discover if the mail servers for sendnix.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 Thu, 08 Apr 2021 08:17:54 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx.sendnix.de
2a01:4f8:252:29dc::2
Results incomplete
10 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
mx.sendnix.de
157.90.134.99
 10
supported
sendnix.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=sendnix.de

Certificate chain
  • sendnix.de
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • DST Root CA X3 (Certificate is self-signed.)
            • remaining
            • 2048 bit
            • sha1WithRSAEncryption
Subject
Common Name (CN)
  • sendnix.de
Alternative Names
  • imap.sendnix.de
  • mta-sts.sendnix.de
  • mx.sendnix.de
  • sendnix.de
  • smtp.sendnix.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2021-04-05
Not valid after
2021-07-04
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
CE:B9:D8:14:4C:70:60:1C:45:33:EF:38:BF:8F:90:F7:1C:6F:C4:64:A6:E5:E7:16:32:14:12:FD:54:9A:C5:76
SHA1
E0:1C:AC:1A:C3:43:4F:6C:BC:A3:B4:1E:28:31:CC:05:ED:2B:08:9E
X509v3 extensions
subjectKeyIdentifier
  • A6:AE:0F:C5:BA:1C:37:77:B3:91:83:C2:8C:5E:68:8E:AB:95:51:BE
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 : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
  • D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
  • Timestamp : Apr 5 11:00:15.559 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:17:27:C7:5F:F8:BF:C7:51:1B:11:49:EF:
  • 87:B0:33:48:FB:07:27:90:55:1C:A5:8C:E8:D1:72:96:
  • C0:1E:40:B7:02:20:1A:B5:F8:B7:CE:FB:AD:33:B3:98:
  • DC:B5:7F:82:81:1F:97:83:F0:4D:D7:A7:59:28:99:A5:
  • 76:B2:BA:1D:AE:04
  • 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 : Apr 5 11:00:15.590 2021 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9E:50:A8:CF:C3:A8:52:E9:7F:9F:54:
  • 28:C8:22:AB:B2:A7:53:D2:D7:0C:B3:DF:31:E1:A5:4A:
  • 10:B7:83:C5:F0:02:21:00:83:92:FD:FE:61:A6:9D:F4:
  • 8D:B9:A0:27:4B:43:AC:B2:91:12:FC:51:9E:F5:02:2C:
  • 96:80:FD:80:7C:77:D4:9C