SSL-Tools

SSL check results of michael-zenke.de

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Discover if the mail servers for michael-zenke.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 Sun, 18 Oct 2020 04:03:57 +0000

The mailservers of michael-zenke.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @michael-zenke.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mx1.mpaulsen.de
2a01:4f8:212:2084:1::1
 10
supported
srv1.mpaulsen.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
10 s
mx1.mpaulsen.de
144.76.169.131
 10
supported
srv1.mpaulsen.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s
mx2.mpaulsen.de
2a01:4f8:c0c:18d::2
 20
supported
mx2.mpaulsen.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
10 s
mx2.mpaulsen.de
78.46.201.101
 20
supported
mx2.mpaulsen.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s

Outgoing Mails

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

Certificates

First seen at:

CN=srv1.mpaulsen.de

Certificate chain
Subject
Common Name (CN)
  • srv1.mpaulsen.de
Alternative Names
  • mx1.mpaulsen.de
  • srv1.michael-zenke.de
  • srv1.mpaulsen.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-09-20
Not valid after
2020-12-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
CF:0F:10:5A:AE:A2:9E:10:B8:B1:A7:EA:04:A2:74:0F:C5:F7:39:A4:7A:21:0B:57:B2:70:5E:BD:DE:BA:A6:71
SHA1
FD:B9:BB:2E:32:A7:2B:B8:5A:F2:F5:1C:4A:0C:FA:91:EE:C6:EE:75
X509v3 extensions
subjectKeyIdentifier
  • 31:97:2C:62:B0:9F:2B:9E:6E:A5:F4:AB:2D:4C:16:26:F8:35:6F:0E
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 : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Sep 20 03:29:41.629 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:81:5A:18:47:FF:20:B3:71:9A:F0:32:
  • 48:C5:60:92:E0:30:B1:9F:86:C0:D8:04:D9:59:FF:F9:
  • 0E:21:1C:C6:75:02:20:60:EC:93:C1:6C:C8:35:89:CD:
  • 5B:23:94:1A:D2:6A:C2:91:E6:95:CF:CF:38:58:71:E9:
  • 7A:9A:CA:DA:57:CF:3C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Sep 20 03:29:41.640 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:34:77:52:48:68:04:75:D3:F9:B5:1E:89:
  • E8:81:BA:AB:D5:75:38:9E:C4:AD:7E:C8:CA:32:55:29:
  • 31:69:D8:25:02:21:00:AE:09:C6:E5:50:05:A2:7F:E3:
  • 67:ED:C9:AA:E1:CA:21:BC:6B:C2:92:C7:92:C4:2C:96:
  • 1E:5D:0F:B0:73:B3:1A
First seen at:

CN=mx2.mpaulsen.de

Certificate chain
Subject
Common Name (CN)
  • mx2.mpaulsen.de
Alternative Names
  • mx2.mpaulsen.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-08-23
Not valid after
2020-11-21
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D0:0D:18:5A:4F:6B:99:E9:BD:A8:3E:78:44:01:55:BC:31:23:9A:EB:07:89:7A:3A:31:97:04:6D:0C:38:67:3C
SHA1
24:EA:6D:74:22:12:12:85:B4:40:BD:79:30:CE:19:F7:18:2D:74:B9
X509v3 extensions
subjectKeyIdentifier
  • 98:94:3A:2E:00:0C:06:98:09:31:B7:AB:B2:1A:B1:52:AD:80:91:5A
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 : Aug 23 02:28:16.053 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:91:85:2E:79:82:25:2A:69:18:01:33:
  • 56:2E:0D:3B:18:F2:AF:F5:B1:D4:FD:39:1E:71:2B:69:
  • FF:8A:7C:91:85:02:21:00:EC:0A:B2:F6:21:3B:01:AE:
  • 5C:7B:B4:AA:54:04:59:8F:21:CD:F9:DD:5D:40:49:81:
  • 1B:D5:96:39:99:75:E9:F5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
  • 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
  • Timestamp : Aug 23 02:28:16.107 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:49:45:36:9A:BD:8F:DF:AB:53:A9:FE:51:
  • 97:78:28:EA:37:88:4D:B5:B5:7A:40:AB:48:64:BB:94:
  • 45:CD:C8:7B:02:20:69:E1:C8:06:83:C8:FD:A0:FF:00:
  • 8B:B8:3C:17:06:FC:0E:42:99:89:F3:5B:FE:60:D3:A7:
  • 82:46:02:D8:D3:A7