Overview
After upgrading Kerio Connect to version 9.2.9, one may experience an issue with email signature and images not showing. This article drscribes a workaround for this issue.
Environment
Kerio Connect 9.2.9
Root Cause
Kerio Connect upgrade to version 9.2.9.
Resolution
- Navigate to the mailserver or MailServer directory (depending on the Server Operating). The default paths for various Operating Systems are listed below:
-
Windows:
C:\Program Files\Kerio\MailServer. -
Mac:
/usr/local/kerio/mailserver. -
Linux:
/opt/kerio/mailserver.
-
-
Edit the file mailserver.cfg to change the following variable:
<variable name="AppendHeaderContentSecurityPolicy">default-src 'self' 'unsafe-eval' 'unsafe-inline' *.kerio.com; img-src * http: https: data:;</variable>. -
Start the Kerio Connect service.
Validation
Signature and images are showing in the webmail.