imapsync - Console-based utility for migrating IMAP mailboxes.
Arcserve UDP - Arcserve UDP is data backup & recovery software that deals with unified data protection solutions, making you protect your computer system by creating data stores on the recovery point server.
Gmvault - Backup the emails in your Gmail account.
Comet Backup - Comet is advanced backup software for MSPs, IT Companies and Backup Providers.
Cryoserver - Cryoserver is an all-in-one email archiving solution that empowers you to preserve your email in a tamper-evident archive, making you transform your data into a useful archive for everyday use.
Clumio - Clumio is first-in-class cloud backup optimization and visualization engine that provides a chance to top leading business organizations or enterprises to protect, delete and restore their precious data in no time.