2. Select Internet Accounts



3. Choose Add Other Account

4. Choose Mail Account

5. Start by adding your name, full email address (your login is always your full email address) and Password

6. Next, repeat the email address & add as the user name/login as well. Choose IMAP & input mail servers 
    mail.yourdomain.com (or .ca etc)

Mac then requires users to set up the ability to check (IMAP) and send (SMTP) mail in advanced settings. 

• IMAP Settings (must be set correctly for checking mail)
• Select Preferences from the main Mail menu.
• Select the new account you wish to modify from the Accounts list.
• Click the Advanced tab.
• Click Use SSL. The port number changes automatically from 143 to 993.
• If asked - set the Authentication field to on set the Authentication field to Password if asked.

• SMTP server (must be set correctly for mail to send out)
• Select Preferences from the main Mail menu.
• Select "edit smtp server list" from the drop down
• Select the relevant server if there, or ADD one that uses mail.yourdomain.url as the setting
• Click the "advanced" button
• Check "use custom port"
• Ensure the port number (465) click "ok"
• SSL should be set to ON
• Authentication must be set to ON, set the Authentication field to password if asked.

- Exit preferences - remembering to save your new settings on your way out.
- You may need to go back to screen 4 (outgoing server) to select the one you just configured to work with your new account.