In case the automatic setup fails, here is the manual setup for the Apple Mail email client:

• Open your Apple Mail client
• Fill in the ‘Welcome to Mail’ window with the following information:
  Full Name: Enter your name as you would like it to appear in the From: field of outgoing messages.
  Email Address: your full email address
  Password: your password
  Important: Hold the option button down until ‘Create’ turns into ‘Continue’
• Click Continue.
• Fill in the following Incoming Mail Server information:
  Account Type: Select POP
  Incoming Mail Server: Change this to your_domain.com
  User Name: your full email address
  Password: your password
  Important: Hold the option button down until ‘Create’ turns into ‘Continue’
• Click Continue.
• Incoming Mail Security
  Use Secure Sockets Layer (SSL): selected
  Authentication: Password
  Important: Hold the option button down until ‘Create’ turns into ‘Continue’
• Click Continue
• Enter the following Outgoing Mail Server information:
  You can leave description blank – this field is optional
  Outgoing Mail Server: your_domain.com
  Use Authentication: selected
  User Name: your full email address
  Password: your password
  Important: Hold the option button down until ‘Create’ turns into ‘Continue’
• Click Continue.
• Outgoing Mail Security
  Use Secure Sockets Layer (SSL): selected
  Authentication: Password
  Important: Hold the option button down until ‘Create’ turns into ‘Continue’
• Click Continue.
• Review your Account Summary and uncheck “Take account online” as you will need to adjust your incoming port number
• Click Create
• Once your client opens, you’ll need to change your incoming port number to 995. To edit your incoming port number, please click Mail>Preferences… > Accounts tab > Advanced
  Important: Your port number must be 995
• After you’ve updated your port number, you can take your accounts online and download new messages by clicking Mailbox > Get All New Mail