SolarWinds Backup - Modern server backup software
MailStore - MailStore Home - A 100% free single-private-user desktop solution
Druva inSync - Your device may be lost, but your data isn’t with Druva inSync™ Integrated backup, eDiscovery and compliance monitoring.
Gmvault - Backup the emails in your Gmail account.
Datto Backupify - Protect your business with backup.
SysTools Gmail Backup - Backup Gmail Emails, Contacts, Calendar, and Google Drive Storage File by SysTools Gmail Backup Solution