To add a warning about insecure message:
This opens the View rule window.
Rule settings become editable.
Warnings are added to the text of the messages in accordance with settings.
Whether the warning is displayed correctly depends on the software that the recipient uses to view email as well as on the content of the messages. For this reason, we do not recommend relying entirely on warnings to inform users about potential threats and other objects detected in messages. For example, you can also add a text tag to the beginning of the message subject.
To ensure the configured settings are applied during the operation of Kaspersky Secure Mail Gateway, make sure to enable the configured rule.