Now Exchange 2010 to office 365 migration is very easy as EdbMails provides an excellent tool . You can migrate  all the mailbox items flawlessly  from Exchange server to office 365  using Exchange migration to office 365 tool.

The key  features  include:

1. Highly reliable and risk free

2. Very simple and easy user interface

3. No duplication of items i.e true incremental

4. Public and archive mailboxes migration

5. No  limitation on size of mailboxes

6. Selective item migration

7. Exclude folder facility

8. Fully secured and safe migration

9. Zero down time.

Free trial  allows you to freely migrate  30 items  from each and every folder .

Visit : https://www.edbmails.com/pages/exchange-2010-to-office-365-migration.html