Why do I Migrate to Office 365 from Exchange?
Several users and businesspersons ask this question, and the answer to this question is simple Office 365 is a secure, cost-effective, and convenient solution to increase productivity within any organization. Imagine working for a tycoon, and somehow you got late or missed the office due to personal reasons; Office 365 allows you to access all your work data from anywhere, anytime, so you’ll never be out of the office; it only needs a laptop.
Apart from this, there are several other reasons, and the solution for all of them is migration to Office 365. If you want to do this task effortlessly and quickly, I suggest you use Shoviv Exchange to Office 365 migration tool. This tool is recommended and regarded by several Microsoft MVPs and migration engineers. You can use the free version with permission to process the first 50 items per folder for a better idea and software evaluation.
Read more:https://www.shoviv.com/pages/migrate-exchange-to-office365.html

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Regain Software commented
PST to Office 365 Migration Software to import Office 365 group mailbox data to Outlook PST format without any data loss.
https://www.regainsoftware.com/pst-to-office365-migration.html -
James Watt commented
EdbMails is a secure and automatic solution Exchange to Office 365 migration. With its granular migration feature, you can transfer select mailboxes, public folders, and mail items while its incremental migration technology ensures that your conversion is free of duplicates. Additionally, you can export Exchange mailboxes to Outlook PST.
Visit: https://www.edbmails.com/pages/exchange-server-migration-tool.html