Why are special folders (e.g., Trash, Drafts) not working in RoundCube?

Special folders in RoundCube may not work due to misconfiguration. Fix with these steps:

• Access RoundCube: Log in to the email account via RoundCube.
• Configure Folders: Go to Settings > Preferences > Special Folders and select the appropriate folders (e.g., Trash, Drafts) from the dropdown menus.
• Save and Test: Save changes and test deleting messages.