This manual will explain how to setup POP3 and IMAP accounts on your Android Device.
Note: All screenshots are from a Galaxy S6 on Android 6.0.1 so your menu layout may differ.
Step 1: Open your Settings "Generally found on the home screen"
Step 2: As shown below you will need to select "Accounts"
Step 3: Down the bottom of the page you will be able to select "Add Account"
Step 4: Select the "Email" Options
Step 5: Enter in your FULL email address and password as shown then click "Manual Setup"
Step 6: Select the account type you wish to add, in this case you want to select "IMAP Account"
Step 7: Enter all account details as shown below
Note: Follow the email settings as per the link: recommended mail settings
Once you have confirmed all the settings select "Done" to add the account.
Now all you will need todo is open up your mail application to access your emails.