Automatically purge messages from the Spam folders on Horde Webmail
Step 1: Follow the steps to delete spam emails automatically from Horde Webmail
1. Visit the URL http://webmail.domain_name.com and login into horde webmail.
2. Hover on settings icon, then Preferences and click on Mail option.
3. Now click on the "Deleting and Moving Messages" option.
6. Now follow the options as given below and click on Save button.