- Plesk for Linux
- Plesk for Windows
How to block/filter incoming mail specified by word?
How to configure an action when the spam score is between numbers N and X?
Is it possible to use a keyword in SpamAssassin extension?
The functionality of adding custom antispam filtering rules, i.e. to filter spam by keywords, is not yet implemented in Plesk. Please vote for this feature at Plesk User Voice portal
The top-ranked suggestions are likely to be included in the next versions of Plesk.
As a workaround, consider editing SpamAssassin configuration files. For more information on advanced SpamAssassin configuration, refer to the Advanced Administration Guide, Spam Protection for Linux or Windows , SpamAssassin documentation and here.