Open Outlook 2010.
Go to File -> Info -> Add Account.
Select the "Manually configure server settings or additional server types" radio button and click "Next"
Select the "Internet E-mail" radio button and click "Next".
Enter the required information:
Your Name - The name you want to appear on outgoing email.
E-mail address - Your email address.
Account Type - Select "IMAP"
Incoming mail server - This will be mail.yourdomain.com, where yourdomain.com is the domain of your email account.
Outgoing mail server (SMTP) - This will also be mail.yourdomain.com, where yourdomain.com is the domain of your email account.
User Name - This will be your full email address.
Password - Password for your email account.
Click "More Settings" ...
Select the 'Outgoing Server' tab.
Tick 'My outgoing server (SMTP) requires authentication'
Select 'Use Same settings as my incoming mail server'
Click 'OK'Click "Next".