If you don’t know how to take mail backup from Roundcube webmail to a hard drive then I suggest you the best tool eSoftTools IMAP backup and migration software. This software is the best and fastest way to take a backup from RoundCube webmail. It supports all window formats like Win 11, 10, 8.1, 8, 7, XP, Vista, & others. This software saves your mail in a variety of file formats like PST, EML, EMLX, MSG, HTML, MHTML, and MBOX files.
Know More - https://www.esofttools.com/imap-backup-migration-tool.html