Preferences
 Procmail Mail Filter
This module allows you to configure filtering for email send to your address on this server. However, it will only work if your system administrator has installed Procmail globally, or if you have setup delivery to the Procmail program in the Mail Forwarding module.

Action to take Conditions Move Add
Write to maildir /home/users/www/homes/demouser/Maildir/new Always execute action
Add a new filter action.   Add a new conditional block.   Add a new variable setting.   Add a new include file.   Manually edit configuration.