If you are looking for the solution for migrating mailboxes from Exchange server, EdbMails Exchange migration tool is the best option. It will migrate all the mail items including E-Mails, calendars, journals, tasks, notes etc. It will also supports public folders and archive mailboxes. You can migrate mailboxes of any size.

Key Features are:

• True incremental migration
• Highly Secured migration
• Maintaining original folder structure
• Granular Migration
• NO Outlook, Exchange services or Active Directory dependency
• Display of Mailbox items count
• Automatic mapping of mailboxes
• Exclude folder facility
• Supporting almost all exchange versions

You can migrate exchange to office 365 easily.

EdbMails is installed directly on the source server and doesn't involve the use of any third party cloud platforms or services during the migration process. With EdbMails, all your data goes directly from source server to the destination server. As there is no third party intermediary involved, all your credentials and important information is safe.