SysKit Security Manager - Meet your Office 365 security ally!
MailStore - MailStore Home - A 100% free single-private-user desktop solution
Saketa Sharepoint Migration Tool - Saketa SharePoint Migrator is a hub of exciting, interesting and advanced features. One of the best applications for SharePoint migration, you can migrate data from all versions of SharePoint, O365 and, the Cloud.
imapsync - Console-based utility for migrating IMAP mailboxes.
Saketa - The main goal of transforming the traditional office into a digitally enhanced and collaborative workplace. Saketa SharePoint Migrator and Saketa Intranet Suite are designed to serve this purpose.
MozBackup - Backup tool for Firefox and Thunderbird