Retrieving messages sent to your Gmail account in Outlook requires preparing Gmail and then Outlook. After you have enabled IMAP in Gmail, you can set the account up in Outlook.
Open Outlook and go to File.
Select Add Account. The Add Account window opens.
In the Email Address text box, enter your Gmail email address.
Select Connect.
Enter your Gmail password, then select Connect.
Wait while Outlook connects with your Gmail account.
Connect Gmail and Outlook Manually
If the automatic setup does not work properly, set up Gmail manually in Outlook.
Open Outlook.
Select File.
Select Add Account. The Add Account window opens.
Select Advanced Options.
Select Let Me Set Up My Account Manually.
Enter your email address, then select Connect.
Select IMAP.
Enter your password, then select Connect.
Select Change Account Settings.
Enter the following information into the IMAP Account Settings text box.