Migrating from an on premises platform towards a cloud platform is a highly complexive . So this action needs careful planning and systematic approach.
If you follow various migration method, you need to follow lengthy procedures and you need to execute complex powershell commands. So it is better to go behind a third-party tool which can migrate Exchange server mailboxes to another Exchange server and also to Office 365 smoothly.
EdbMails for Exchange server mailbox migration
EdbMails Exchange migration tool is highly preferred third party tool available in the market from which you can perform the Office 365 migration task efficiently. You can perform the migration of all the mailbox items like Emails, Calendars, Contacts, Journals, Tasks etc . No need to Execute complex powershell commands. You can perform the migration job just in few clicks.
Know More: Exchange Migration