1. Open System Preferences. Click on Internet Accounts.
System preferences
  1. Click Exchange. 
Internet Accounts
  1. Enter your name and Dukes Email address. Click Sign In.
Exchange Credentials
  1. Click Sign in
    Note: The Manual Configuration option will not work, as it will not prompt for Duo Authentication.
Exchange Account Summary Screen
  1. Enter your Dukes Email Password and click Sign in.
Mac Mail Enter Password
  1. You will be prompted for Duo Authentication, at which point you will approve via Push or Passcodes.
    Note: This will only need to be done once.
Duo Authentication
  1. You may then choose additional applications to sync with the account, but this is optional. Click Done. Open the Mail application to view email.
Mac Mail Setup Complete

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