Set Up a Filter Rule in Horde
1.Log in to Horde Webmail
2.Click the "Mail" icon
3.Click the "Filters" icon
4.Click the "New Rule" button
5.Give the rule a descriptive name (Optional but suggested), for example "Delete facebook notifications"
6.In the drop-down list choose "Subject" or "Sender" (Several new fields will appear.) .
7.Enter the text you are looking for in the empty field to the right.
8.In the "Do This" Drop-down list choose "Deliver to Folder"
9.Choose "Create new folder" Or select an existing folder.
10.Click the "Save" button.