1. Click File → Info → Add account.
    The Outlook wizard for setting up a new account will open.
  2. Enter an email address to add your account.
  3. Click Advanced options and check the box for "Let me set up my account manually".
  4. Click Connect.
  5. Choose the account type IMAP.
    The dialog IMAP Account Settings will open up.
  6. Use the following settings:
    1. Incoming mail: Server imap.hostinger.co.uk with port 993 and check the option This server requires an encrypted conncetion (SSL/TLS)
    2. Outgoing mail: Server smtp.hostinger.co.uk with port 587 and the encryption method STARTTLS
  7.  Click Connect.
    A login dialog will appear.
  8. Enter your password and click Connect.

 

Outlook 2016 will now sync with your Sprint Online email account.