SSL-Tools

SSL check results of mail.ferrybig.nl

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Discover if the mail servers for mail.ferrybig.nl 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 Sat, 05 Sep 2026 00:30:43 +0000

The mailservers of mail.ferrybig.nl can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @mail.ferrybig.nl addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.ferrybig.nl
136.144.238.233
 -
supported
*.ferrybig.nl
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s
mail.ferrybig.nl
2a01:7c8:d008:34a:5054:ff:fe1d:7c4a
 -
supported
*.ferrybig.nl
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.ferrybig.nl

Certificate chain
  • *.ferrybig.nl
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • YE1
        • remaining
        • 384 bit
        • ecdsa-with-SHA384
          • Root YE
            • remaining
            • 384 bit
            • ecdsa-with-SHA384
              • ISRG Root X2 (Certificate is self-signed.)
                • remaining
                • 384 bit
                • ecdsa-with-SHA384
Subject
Common Name (CN)
  • *.ferrybig.nl
Alternative Names
  • *.ferrybig.nl
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • YE1
validity period
Not valid before
2026-08-29
Not valid after
2026-11-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
Fingerprints
SHA256
84:CE:66:27:FB:58:BA:7F:9F:1C:E2:09:1D:B4:C2:C9:8B:B6:E6:4A:36:EE:6E:12:8E:15:9E:7D:54:FA:BF:73
SHA1
E2:AB:C3:9F:F5:97:B2:2D:C4:C8:2E:8C:27:1A:E6:63:26:A9:A6:E5
X509v3 extensions
subjectKeyIdentifier
  • 83:C7:8B:38:DE:A5:E8:FD:9B:A4:DE:51:9E:0A:FA:5D:33:13:36:EB
authorityKeyIdentifier
  • keyid:BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
authorityInfoAccess
  • CA Issuers - URI:http://ye1.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://ye1.c.lencr.org/113.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Aug 29 09:36:29.799 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:19:E6:30:9C:7B:EE:4B:9F:5F:DD:92:EE:
  • FE:EE:03:A0:1B:6F:D9:25:3F:20:98:10:4D:A3:02:D1:
  • 32:49:3A:87:02:21:00:A9:1B:EB:66:0C:CC:F5:27:66:
  • 98:1B:84:34:70:D8:FE:6E:9A:ED:0B:3A:40:2D:67:11:
  • ED:C6:7F:9B:06:EB:00
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37:
  • 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23
  • Timestamp : Aug 29 09:36:28.048 2026 GMT
  • Extensions: 00:00:05:00:3A:67:18:19
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:82:33:88:E9:E1:26:23:0B:DA:3C:6D:
  • 2D:93:A7:5A:33:C7:DD:C8:5D:BA:4A:D2:38:34:E1:1F:
  • 16:72:55:AF:40:02:20:27:D3:CA:13:3B:24:F8:2B:39:
  • 2E:77:79:1B:F4:1A:21:61:F8:9D:F5:4F:1D:82:5A:E6:
  • C2:2F:A0:B6:97:02:69