SSL check results of killerzelle.de

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Discover if the mail servers for killerzelle.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 Fri, 29 May 2020 12:53:34 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.killerzelle.de
2a02:c205:3002:2299::1
10
supported
mail.killerzelle.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s
mail.killerzelle.de
80.241.217.144
10
supported
mail.killerzelle.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
10 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.killerzelle.de

Certificate chain
Subject
Common Name (CN)
  • mail.killerzelle.de
Alternative Names
  • mail.killerzelle.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-17
Not valid after
2020-08-15
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B9:B0:C9:33:FC:A2:6B:92:2D:7F:0B:98:38:B0:DB:0B:37:82:50:C6:A0:58:FE:F5:E4:B2:B6:82:1A:64:AB:90
SHA1
34:23:7B:D9:C0:64:07:12:DD:75:61:D8:68:24:57:EB:65:A0:A0:0B
X509v3 extensions
subjectKeyIdentifier
  • 41:11:84:03:63:B9:2D:86:53:78:36:24:0F:E6:DE:36:CE:FC:37:28
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : May 17 03:07:14.392 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F1:A7:A1:FA:E8:8A:27:B7:13:30:77:
  • 53:23:D3:E4:26:15:9E:CE:83:78:67:08:89:97:16:6D:
  • F5:A1:11:33:83:02:21:00:E5:43:E5:1C:EA:7B:F0:C3:
  • 9A:1C:71:05:6A:B3:EB:E8:43:57:5A:AF:2B:45:7F:44:
  • 8E:35:A6:97:94:EA:F2:77
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : May 17 03:07:14.902 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:3D:86:2C:21:05:27:56:6B:C1:7B:B2:16:
  • BD:A4:89:27:1F:3E:6B:34:BF:57:04:0E:0C:A5:4B:8E:
  • 94:C0:47:D9:02:20:02:96:0F:CC:7D:CD:6E:60:02:02:
  • D8:3F:1D:18:9B:1B:CC:C1:27:CE:06:E2:96:EC:04:7D:
  • 31:7D:A1:FC:B1:D2