MailStore - MailStore Home - A 100% free single-private-user desktop solution
Regain PST to Office365 Migration - This tool allow user to migrate Outlook PST file to Office 365 Account including with all folders. Use Free trial version to check software working and its capability.
Gmvault - Backup the emails in your Gmail account.
SysTools Office 365 Import - Try SysTools Office 365 Import Tool to upload Outlook PST file Emails, Contacts, Calendars, Tasks into Office 365 account.
Mail Backup X - Your one stop mail backup and archiving tool for Mac.
PST to Office 365 Wizard - Outlook PST to Office 365 files converter tool supports multiple formats conversion.