SSL-Tools

SSL check results of sasse.de

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Discover if the mail servers for sasse.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 Tue, 02 Jun 2020 00:30:26 +0000

The mailservers of sasse.de can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mx05.acs-europe.de
195.242.167.61
 10
supported
mx05.acs-europe.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
19 s
mx06.acs-europe.de
93.159.110.187
 10
supported
mx06.acs-europe.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
18 s
mx04.acs-europe.de
212.99.205.221
 10
supported
mx04.acs-europe.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
18 s

Outgoing Mails

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

Certificates

First seen at:

CN=mx05.acs-europe.de

Certificate chain
Subject
Common Name (CN)
  • mx05.acs-europe.de
Alternative Names
  • mx05.acs-europe.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-06-01
Not valid after
2020-08-30
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
43:54:EB:34:63:9C:CE:F2:73:BF:CC:F6:22:F9:AE:4E:3B:53:82:D0:0B:01:CD:B9:C0:C9:F7:42:E6:5D:7D:A4
SHA1
BB:6C:22:37:4B:2F:68:1F:C2:53:80:07:29:9D:E9:F0:96:D1:F3:DF
X509v3 extensions
subjectKeyIdentifier
  • 0C:33:D7:87:93:23:0C:C9:06:FC:8C:31:B0:69:C8:49:CE:7B:E9:E2
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 : 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 : Jun 1 01:06:58.558 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DC:13:A2:9C:6B:D0:5F:9F:8F:37:A8:
  • 6F:17:62:83:9E:C0:86:60:02:65:7F:88:41:62:25:F4:
  • 8F:3E:E3:37:52:02:21:00:C4:5F:6C:0E:6E:6F:B6:B0:
  • 44:0D:3A:97:85:15:D5:C8:B4:E7:DC:10:CF:07:D4:D1:
  • FA:71:2C:BF:F1:38:A4:C2
  • 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 : Jun 1 01:06:58.562 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7C:1A:1F:B3:87:E6:AB:A4:E5:8E:19:7D:
  • D6:37:0D:36:1D:E3:26:DB:3A:08:EE:7C:E2:FC:54:4F:
  • CE:1A:18:75:02:21:00:90:2F:74:2E:98:93:7F:47:74:
  • 0B:FE:C2:E4:B8:A4:4D:CC:4E:15:9B:C0:8A:CC:FF:55:
  • 1E:66:E6:14:86:F7:F5
First seen at:

CN=mx04.acs-europe.de

Certificate chain
Subject
Common Name (CN)
  • mx04.acs-europe.de
Alternative Names
  • mx04.acs-europe.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-04-02
Not valid after
2020-07-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B6:F4:DF:E3:44:1C:A5:E7:02:12:0D:92:2C:38:ED:5E:0D:2B:A1:A5:F4:CC:C4:F7:5B:44:2D:98:24:43:B5:EF
SHA1
C8:64:F8:7F:D2:0E:F4:0A:9F:E6:9D:40:D2:E5:CA:37:7B:A9:56:34
X509v3 extensions
subjectKeyIdentifier
  • D6:51:1F:6E:67:97:47:B9:64:BE:D7:B5:E0:23:93:1E:BB:5F:FA:10
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 : Apr 2 01:28:46.996 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:32:3F:FE:E7:60:E2:83:5A:5F:79:F3:46:
  • 57:80:FA:BE:58:ED:3B:3C:17:7B:87:25:2C:CB:82:8B:
  • C3:22:A5:45:02:20:16:3A:47:FF:49:81:8D:84:12:D9:
  • BE:16:04:64:F9:D8:89:74:8B:F5:B2:38:FE:F7:B9:1C:
  • 98:97:C4:43:BC:22
  • 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 : Apr 2 01:28:46.999 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:82:40:EF:C4:C5:D7:8A:E8:4D:F1:EA:
  • 89:ED:D7:0B:3C:AD:B0:16:91:1F:42:4A:9B:D5:E3:7D:
  • D9:2B:73:F3:08:02:20:69:47:64:13:67:FE:D7:8B:5D:
  • F7:9A:21:DD:99:54:5C:3A:82:82:9F:1D:07:F1:C8:48:
  • C0:5F:04:65:09:65:BB
First seen at:

CN=mx06.acs-europe.de

Certificate chain
Subject
Common Name (CN)
  • mx06.acs-europe.de
Alternative Names
  • mx06.acs-europe.de
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-03-31
Not valid after
2020-06-29
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C6:38:96:B6:92:A1:E1:81:57:81:04:79:91:A1:AD:4A:80:F2:6A:23:3E:75:1E:28:8D:91:1B:26:62:84:A5:F7
SHA1
1A:4F:50:46:85:BC:EA:C7:6E:6B:E1:93:3C:34:F9:69:98:CC:CE:1E
X509v3 extensions
subjectKeyIdentifier
  • 45:B5:5D:C7:E6:6D:F8:A7:E6:2B:F7:34:1E:CB:E3:E2:EE:DC:CB:86
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 : 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 : Mar 31 02:03:05.283 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:4D:58:6E:2B:D6:4E:5D:A3:24:2A:71:DD:
  • FA:C6:2A:31:1C:60:69:8E:4C:AE:D7:7C:AC:A7:93:CC:
  • D3:96:B8:9F:02:21:00:AA:66:D0:88:B7:12:83:03:2F:
  • BF:30:87:B8:8D:FC:1B:41:26:BF:08:3C:36:4D:AF:66:
  • 76:BF:67:1A:F5:B1:16
  • 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 : Mar 31 02:03:05.326 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:20:B2:F1:71:F5:61:E4:E1:AC:8B:FA:8C:
  • 3D:9D:D7:14:0B:E6:EC:56:4C:7F:0C:B4:EC:80:E7:93:
  • 6E:DA:69:5D:02:20:4F:E9:73:AA:5E:9F:11:60:AE:51:
  • 8B:7F:A0:70:39:FA:5D:3C:0D:64:FC:57:94:24:29:32:
  • 46:86:3A:C4:5E:7E