Migration of Groupwise mailboxes is not the biggest concern nowadays. There are many third-party tools available on the web that can solve your issue with Groupwise migration. But choosing the best tool is always a typical concern in user mind. Let me allow to introduce a brilliant tool named as Groupwise to Exchange migration tool from Bitdataconversion that can completely migrate your Groupwise mailboxes into Exchange server, Office 365 and Outlook as well. Additionally, to establish connectivity with Groupwise, the tool offers five major connectivity options such as cache mailbox path, online mode, remote mailbox path, default login.