Articles

Best-practices for securing Kerio Connect, SSL certificate queries

• Resolving "Unable to open DLL library kavmodule.dll" Error

  Overview Kerio Connect is constantly showing the following entries in the Logs: [11/Oct/2019 09:34:47] AntivirusModule.cpp: Antivirus module: Unable to open DLL library D:\Kerio\MailServer/plugins/kav...

• Legit Emails Are Blocked by Spam Repellent

  Overview You may notice that emails from certain senders are not being received. Also, you may find the following messages in the SMTP server Debug logs: {smtps} Client xxx.xxx.xxx.XXX:64873 closed co...

• Setting HTTP Security Headers for Kerio Connect

  Overview Some authorities require domain compliance for HTTP headers. This article shares the process of setting configuration variables for HTTP Security Headers.    Prerequisite Access to the Kerio ...

• Deploying Let's Encrypt SSL Certificate on Linux DEB Installations for Kerio Connect versions prior to 9.4

  Overview This article provides information on how to successfully deploy Let’s Encrypt SSL certificate in Kerio Connect. Note: The documented process below relates to the certbot certificate creation ...

• Secure email delivery via Sender Policy Framework and Greylisting

  Overview The users may receive similar Delivery Status Notification emails regarding SPF failures: Delivery to the following recipients failed permanently: * support@external_domain.com Reason: There ...

• Kerio Connect: Antivirus and Content Filters

  Overview This article provides information about the antivirus and content filters integrated into the Kerio Connect system.   Information Kerio Antivirus Kerio Connect includes Kerio Antivirus, integ...

• PCI DSS Compliance in Kerio Connect

  Overview Payment Card Industry Data Security Standard (PCI DSS) is a proprietary security standard required by some banks in order to allow the company to process and store data about credit cards and...

• Authenticating messages with DKIM in Kerio Connect

  Overview: This article describes how to authenticate messges with DKIM in Kerio Connect. DomainKeys Identified Mail (DKIM) signs outgoing messages from Kerio Connect with a special signature to identi...

• Securing Kerio Connect

  Overview In order to increase the security level of your Kerio Connect installation, it's required to configure certain security control settings. To prevent repeating dictionary attacks from the mult...

• Configuring SSL certificates in Kerio Connect

  Overview To secure Kerio Connect by SSL/TLS encrypted connection, you need an SSL certificate. SSL certificates authenticate identity on a server. Kerio Connect creates the first self-signed certifica...