Use this setting to define the message subject line strings that the toolbar will look for in incoming messages. Separate multiple strings with the '|' (pipe) character (if a string contains a pipe, prefix it with a circumflex, thus: '^|').
If spam filing is enabled you must also enable this setting.
A common value for this setting is '[Spam]' (without the quotes). Enable this setting and set it to empty if you wish to identify ASSP-tagged spam by header only.