lease note: The Windows 8.1 Mail app does not support POP3 accounts, only IMAP. Please ensure you carefully manage your email storage so that you do not run into your account limits.
Click on the “Mail” tile on the Windows Start screen
Click on “View all in Settings”
Click on “Other account”
Click on “IMAP” followed by “Connect”
Click Show more details
Enter your email address into both the Email Address and Username boxes, and your password in the Password box.
Enter your email server address into the Incoming (IMAP) email server and the Outgoing (SMTP) email server boxes. Your email server address is “mail.” followed by your domain-name. E.g. if your domain name is example.com you would enter mail.example.com
Untick the Incoming server requires SSL and the Outgoing server requires SSL boxes.
Change the Outgoing (SMTP) email server port number to 587.