In the main window of the web interface of Kaspersky Security 8 for Linux Mail Server, open the management console tree and select the Settings section and the Protection subsection.
In the KATA Protection section, do one of the following:
Flip off the toggle switch next to the name of the KATA Protection settings group to enable Anti-Phishing protection of messages.
Flip off the toggle switch next to the name of the KATA Protection settings group to disable Anti-Phishing protection of messages.