Overview

Sieve filtering affects the 'Out-of-Office' filters and spam filtering settings. All the mentioned features are designed using the Sieve script language. It is possible to modify the filtering rules (per user) directly from the OS.

This article provides information on how to manually edit the Filter Rules created in Webmail/Kerio Connect Client or KOFF.

Prerequisite

Admin (root) access to the Kerio Connect server.

Process

1. Go to the Kerio Connect store folder.
2. Open the user's folder, i.e., <store>/mail/<domain>/<username>.
3. Locate the filter.siv file and modify the necessary rules.
   
   For example, if the following Attachment filter rule is created in KOFF, it produces the corresponding block in the Filter Sieve file.
   
   Attachment filter rule created in KOFF:
   
   
   
   Corresponding block:
   
   
   
   
4. You can now modify the mentioned filter.siv file without restarting the Kerio Connect server.
   
   NOTE: It is recommended to back up the original file before modification.

Confirmation

The filter.siv file is successfully modified from the server OS and is populated to the corresponding email client's interface.