Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.

MailArchiva - MailArchiva is an email archiving, email compliance, and e-Discovery enterprise server.

CommVault - Commvault is a site search platform that helps legal or compliance officers and corresponding end users to explore and retrieve files and email across different applications, storage devices and computers.

Vaultastic - Vaultastic’s on-demand SaaS platform provides Protection, Visibility & Control for your Critical Business Data with Agile Cloud Archival.

Carbonite EVault - Carbonite support knowledge

MailVault - MailVault is a cloud-based IT software that archives and self-prunes based on user settings.