MailStore - MailStore Home - A 100% free single-private-user desktop solution
Acronis Cyber Protect Home Office - (Formerly Acronis True Image) Complete protection for your digital life
Gmvault - Backup the emails in your Gmail account.
Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
SysTools Gmail Backup - Backup Gmail Emails, Contacts, Calendar, and Google Drive Storage File by SysTools Gmail Backup Solution
HDclone - HDClone by Miray Software is the universal tool for cloning disks and other mass storage media fast and easily. To be used for backups, data recovery, system migration and professional duplication of several disks at a time.