OwnBackup - OwnBackup provides automated backups of SaaS and PaaS data and restore tools for disaster recovery.
MigrationWiz - MigrationWiz provides on-demand mailbox migration services through a fully automated cloud-based...
SolarWinds Backup - Modern server backup software
imapsync - Console-based utility for migrating IMAP mailboxes.
Spanning Backup for Salesforce - Spanning Backup for Salesforce is the backup and restore solution delivered directly within the Salesforce interface.
MailStore - MailStore Home - A 100% free single-private-user desktop solution