So you've had a purge and your inbox is now looking much smaller - the downside all those emails are now sitting in the "Trash" folder in roundcube - how do you remove them so they are not taking up disk space still?
Follow these simple steps:
1. Log into roundcube.
2. Click/Select the "Trash" folder.
3. In the bottom left corner of the screen you will see the folder options icon.
4. Click the "Cog" icon to show the "Folder Options" menu - select "Empty".
Your trash folder will now be empty - and your disk space will be back to normal.