SSL check results of bolkow.net

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Discover if the mail servers for bolkow.net 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, 03 Dec 2019 11:59:52 +0000

The mailservers of bolkow.net can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @bolkow.net addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.bolkow.net
78.88.145.184
1
supported
hq.pon-check.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
4 s

Outgoing Mails

We have received emails from these servers with @bolkow.net sender addresses. Test mail delivery

Host TLS Version & Cipher
server.bolkow.net (80.211.251.38)
TLSv1.2 AECDH-AES256-SHA
078088145184.jeleniagora.vectranet.pl (78.88.145.184)
TLSv1.3 TLS_AES_256_GCM_SHA384

Certificates

First seen at:

CN=hq.pon-check.com

Certificate chain
Subject
Common Name (CN)
  • hq.pon-check.com
Alternative Names
  • bolkow.net
  • hq.pon-check.com
  • mail.bolkow.net
  • www.bolkow.net
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2019-11-25
Not valid after
2020-02-23
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
91:6D:A0:72:54:0F:BC:E8:DA:A4:BC:96:BF:C4:39:6A:CF:6C:C7:F1:DC:1A:D3:0E:BB:04:51:98:76:F0:03:3C
SHA1
FA:51:69:A1:D8:9B:FF:7E:2A:AD:C8:D9:38:6C:7D:35:D5:39:66:65
X509v3 extensions
subjectKeyIdentifier
  • 91:ED:3E:96:09:57:F3:E9:8E:EA:C6:6B:6D:30:84:52:EE:81:1F: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
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Nov 25 11:55:31.031 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:38:68:39:FD:D2:5C:AF:11:37:A4:0D:46:
  • 51:9F:2D:20:9D:B3:4A:94:99:BE:B8:D1:2E:56:4B:F8:
  • 28:8B:D8:70:02:21:00:B2:28:99:32:3C:8F:4F:3B:A2:
  • C9:E8:83:6A:64:23:F8:B6:D3:EB:1A:8D:7E:A1:B6:1D:
  • E1:23:29:94:77:63:E8
  • 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 : Nov 25 11:55:31.065 2019 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:0E:AB:C3:7A:B0:3E:17:B4:65:B2:72:3E:
  • 48:9F:4D:13:E4:ED:1D:36:87:32:6A:90:9D:D2:98:43:
  • E2:DA:ED:BB:02:20:39:08:E7:69:5F:4D:B5:E0:6C:86:
  • 36:76:D4:31:D6:B8:AE:4C:37:3D:16:4F:8E:98:FB:53:
  • 77:CC:D4:36:07:E3