Open Outlook and select File.

Click Add Account.

Check Manually configure server settings or additional server types then Click Next

Select Internet E-mail then Click Next

Enter Your Name and E-mail Address

Choose IMAP as your account type

For Incoming mail server (IMAP), enter mail.yourdomainname. For Outgoing mail server (SMTP), enter mail.yourdomainname

In Logon Information enter the e-mail address and password that you created in the control panel

Configuration of the SMTP server in Outlook 2010 Click More Settings

Select Outgoing Server and then My outgoing server (SMTP) requires authentication

Select Advanced.

For Incoming server (IMAP) enter 993 and select SSL.

For Outgoing server (SMTP) enter 465 and select SSL.

For Root folder path enter INBOX with uppercase letters.

Click OK

Click Finish