Configuring tags added to message subjects after DKIM message authentication
To configure labels that Kaspersky Secure Mail Gateway adds to the message subject after DKIM message authentication:
In the main window of the application web interface, open the management console tree and select the Rules section.
In the list of rules, click the name of the rule to open the rule for which you want to configure labels added to message subjects after DKIM message authentication.
Select the Authentication of Mail Sender section.
Flip on the toggle switch next to the name of the Authentication of Mail Sender settings group if it is off.
In the DKIM authentication of mail senders settings group, click the link to the right of the name of the Add the following text to subject of email message setting to open the Tag for DKIM authentication violation window.
In the field under the name of the window, enter the text that you want to add at the beginning of the message subject when a DKIM message authentication violation is detected.
Click OK.
The Tag for DKIM authentication violation window closes.
Click the Apply button in the lower part of the workspace.