When you set up the account in Windows Mail (via Tools/Accounts/New Mail) you should tick the box "Manually Configure Server Settings for email Account" - then on the next screen you have the option to select IMAP instead of POP3
Surface Pro (2017) vs Surface Pro 4
Where HTML5 is headed next
MacBook Pro v Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.