SSL-Tools

SSL check results of mail.interside.nl

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Discover if the mail servers for mail.interside.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 Tue, 16 Sep 2025 14:55:47 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.interside.nl
135.181.162.228
 -
supported
mail.interside.nl
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=mail.interside.nl

Certificate chain
  • mail.interside.nl
    • remaining
    • 3072 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.interside.nl
Alternative Names
  • mail.interside.nl
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-07-04
Not valid after
2025-10-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
92:81:9C:7E:45:8E:73:7F:21:14:1C:C8:48:69:7F:02:F7:FF:FE:C4:35:72:04:E8:86:26:2A:9C:E9:08:39:9D
SHA1
4C:10:D0:69:2F:65:08:5E:83:FA:8B:92:C5:AF:33:B4:0C:34:AA:C8
X509v3 extensions
subjectKeyIdentifier
  • 15:91:1A:DE:E7:44:0C:1E:8E:91:4A:C2:ED:2E:8C:6D:39:71:7D:AC
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/50.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
  • 47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
  • Timestamp : Jul 4 11:14:50.162 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:7A:C4:C5:D0:8E:93:56:02:2D:D6:C1:56:
  • 45:5D:EE:C4:B6:5D:C5:B3:CF:71:D3:90:71:2F:16:02:
  • CC:F2:E3:63:02:20:48:99:7A:69:02:FE:BA:9D:FF:B1:
  • A4:16:E7:1E:DC:C9:50:B5:AE:AA:F6:35:A5:26:05:AC:
  • 86:C3:B5:2A:A4:15
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C:
  • 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0
  • Timestamp : Jul 4 11:14:50.182 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:84:CF:06:89:DF:CE:EF:5D:08:09:0B:
  • 52:7C:1F:0B:2E:C4:3D:29:22:E7:46:0D:62:E9:23:E4:
  • 19:A9:56:A0:DD:02:20:03:5B:EF:5B:73:1B:3D:51:3E:
  • 64:E7:E7:E8:6E:60:B5:BF:C2:6D:12:A4:DD:97:BE:C6:
  • 09:3E:F8:18:B3:7B:83