MigrationWiz - MigrationWiz provides on-demand mailbox migration services through a fully automated cloud-based...
Shoviv GroupWise to Office 365 - Shoviv presents the best GroupWise to Office 365 migration tool, helps to migrate from GroupWise to Office 365, Outlook PST, EML, MSG & many more.
imapsync - Console-based utility for migrating IMAP mailboxes.
MailStore - MailStore Home - A 100% free single-private-user desktop solution
IMAP Upload - IMAP Upload is a tool for uploading a local mbox file to IMAP4 server.
Micro Focus GroupWise - GroupWise collaboration software is a premier collaboration tool for large enterprises.