SSL check results of barkowski.info

NEW You can also bulk check multiple servers.

Discover if the mail servers for barkowski.info 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 Sat, 10 Aug 2019 12:31:07 +0000

We can not guarantee a secure connection to the mailservers of barkowski.info!

Please contact the operator of barkowski.info and ask him or her to solve this problem. This result stays accessible under the following address:

https://ssl-tools.net/mailservers/barkowski.info

Servers

Incoming Mails

These servers are responsible for incoming mails to @barkowski.info addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.barkowski.info
5.9.97.238
10
supported
mail.barkowski.info
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
7 s
altmail.barkowski.info
5.9.97.241
20
supported
disk.dc.barkowski.info
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
12 s
relay.rzone.de
81.169.145.96
Results incomplete
100
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s

Outgoing Mails

We have received emails from these servers with @barkowski.info sender addresses. Test mail delivery

Host TLS Version & Cipher
mail.barkowski.info (5.104.107.195)
TLSv1.2 DHE-RSA-AES256-GCM-SHA384

Certificates

First seen at:

CN=mail.barkowski.info

Certificate chain
Subject
Common Name (CN)
  • mail.barkowski.info
Alternative Names
  • imap.barkowski.info
  • mail.barkowski.info
  • smtp.barkowski.info
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2019-08-10
Not valid after
2019-11-08
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C4:05:D8:D4:EF:AD:45:9D:20:F2:DA:4A:3D:C8:EF:43:03:72:DE:03:61:6F:DF:E9:04:EF:AE:C0:C3:D9:C5:8D
SHA1
2D:5C:31:4D:E2:55:40:56:00:3E:31:E6:BC:02:6D:0F:7E:9F:05:E9
X509v3 extensions
subjectKeyIdentifier
  • 2A:14:F3:8C:1A:74:07:36:19:EF:BF:7D:2E:85:BD:83:C3:F4:CE:F6
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 : 74:7E:DA:83:31:AD:33:10:91:21:9C:CE:25:4F:42:70:
  • C2:BF:FD:5E:42:20:08:C6:37:35:79:E6:10:7B:CC:56
  • Timestamp : Aug 10 12:30:15.333 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B6:D1:31:F7:2D:14:8E:6A:57:C8:BA:
  • 93:C7:5B:B8:A3:0C:99:0B:F9:A8:F7:01:41:90:04:C8:
  • CC:D9:DF:34:9E:02:21:00:F4:5E:FA:D5:BC:B7:25:C7:
  • 49:B5:FB:BC:48:8D:05:30:69:F1:20:10:99:71:A1:C4:
  • 4E:F5:8B:2E:32:C3:64:30
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 63:F2:DB:CD:E8:3B:CC:2C:CF:0B:72:84:27:57:6B:33:
  • A4:8D:61:77:8F:BD:75:A6:38:B1:C7:68:54:4B:D8:8D
  • Timestamp : Aug 10 12:30:15.819 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:48:DC:16:C4:31:C4:9F:66:1E:C3:C9:F4:
  • BB:4D:CC:53:C4:D3:DC:8F:7B:AC:0A:52:88:D3:D8:12:
  • 35:F5:9E:0C:02:21:00:E7:9D:93:06:2F:00:9A:15:2B:
  • BE:4D:65:18:4E:9F:49:C9:7A:A7:78:19:EA:46:97:CF:
  • 49:B4:DA:01:A2:FA:8D
First seen at:

CN=disk.dc.barkowski.info

Certificate chain
Subject
Common Name (CN)
  • disk.dc.barkowski.info
Alternative Names
  • disk.dc.barkowski.info
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2019-07-05
Not valid after
2019-10-03
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B9:75:44:E3:79:53:0E:C4:1F:F6:67:E5:01:35:CE:4D:08:61:CC:0C:A9:AD:03:AD:87:3A:85:68:36:4A:DE:DE
SHA1
0D:E9:6F:55:AE:DC:5E:1E:49:B1:1C:0B:B1:2A:8D:30:65:9B:83:71
X509v3 extensions
subjectKeyIdentifier
  • 17:C5:C9:D4:0D:6D:E2:84:DD:DC:E4:77:15:20:AD:E1:A4:6B:AF:84
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 : E2:69:4B:AE:26:E8:E9:40:09:E8:86:1B:B6:3B:83:D4:
  • 3E:E7:FE:74:88:FB:A4:8F:28:93:01:9D:DD:F1:DB:FE
  • Timestamp : Jul 5 08:35:16.416 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:42:B8:F0:29:11:77:7D:E7:D6:FA:A2:8C:
  • FB:05:B7:FC:52:48:34:B7:3C:C0:2A:07:41:89:7E:84:
  • 76:A5:0E:E3:02:20:67:70:C5:51:C4:80:78:B6:66:F2:
  • CE:6F:83:D3:FE:D4:14:74:31:08:A6:12:11:B6:8D:45:
  • CD:4A:97:AA:20:DC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 63:F2:DB:CD:E8:3B:CC:2C:CF:0B:72:84:27:57:6B:33:
  • A4:8D:61:77:8F:BD:75:A6:38:B1:C7:68:54:4B:D8:8D
  • Timestamp : Jul 5 08:35:16.443 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E9:7D:83:43:1A:4B:E9:32:75:98:50:
  • EE:34:AE:F6:EF:05:AF:2D:75:EC:6C:70:3E:4B:9A:63:
  • B4:16:AF:B1:2F:02:21:00:8C:57:60:00:74:C5:18:82:
  • C3:2C:D2:37:93:11:67:E1:B0:75:EB:1D:94:5F:29:3E:
  • A4:9D:3D:7E:DA:8A:C8:9E