SSL check results of dev-tek.de

NEW You can also bulk check multiple servers.

Discover if the mail servers for dev-tek.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 Tue, 18 Jul 2017 21:41:51 +0000

The mailservers of dev-tek.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @dev-tek.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mailex01.hosted4u.de
88.99.130.86
10
supported
mailex01.hosted4u.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11.0 s
mailex02.hosted4u.de
88.99.189.1
50
supported
mailex02.hosted4u.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
11.0 s

Outgoing Mails

We have received emails from these servers with @dev-tek.de sender addresses. Test mail delivery

Host TLS Version & Cipher
r1.dev-tek.de (31.214.243.91)
TLSv1.2 AECDH-AES256-SHA
mx1.hosted4u.de (138.68.66.197)
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

mailex02.hosted4u.de

Certificate chain
Subject
Common Name (CN)
  • mailex02.hosted4u.de
Alternative Names
  • mailex02.hosted4u.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2017-07-11
Not valid after
2017-10-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
23:14:C0:4E:C6:33:0A:C3:8C:2F:B2:53:05:11:AC:F9:1F:8C:52:01:16:C9:56:20:FD:18:64:45:EF:80:42:3A
SHA1
56:C9:01:6A:E9:85:91:39:03:29:EF:97:76:CA:A7:9D:02:B3:96:46
X509v3 extensions
subjectKeyIdentifier
  • F0:1C:AD:F4:57:00:0A:83:4F:A5:18:63:A2:DA:EA:9F:91:86:D2:D8
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
  • User Notice:
  • Explicit Text: This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/
First seen at:

mailex01.hosted4u.de

Certificate chain
Subject
Common Name (CN)
  • mailex01.hosted4u.de
Alternative Names
  • mailex01.hosted4u.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2017-07-11
Not valid after
2017-10-09
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
AE:8E:F4:E0:CD:7C:96:1C:3D:75:36:53:FE:60:C9:C8:89:5E:74:D8:6B:FD:90:F5:72:93:19:C8:89:B9:C9:94
SHA1
4F:FB:A7:E6:C9:49:17:A3:F7:F1:E2:C5:0C:48:C3:A9:88:AD:6D:DA
X509v3 extensions
subjectKeyIdentifier
  • 62:69:37:39:63:E5:4C:43:9F:B2:48:1D:56:14:B1:AB:2F:86:02:C5
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
  • User Notice:
  • Explicit Text: This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/