Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
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.
Zoho CRM - Omnichannel CRM for Businesses of all sizes
Gmvault - Backup the emails in your Gmail account.
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.
imapsync - Console-based utility for migrating IMAP mailboxes.