Using a FTP program such as FileZilla, your past emails can be deleted via FTP. To do this please do the following:
- Login to your server using the FTP details provided
- Navigate to “users/~username~/cur” to delete emails that have already been read, or “users/~username~/new” for emails not read
- Highlight the files in this folder (Each file is an email) and right-click delete to remove them