On the prefs screen, click Forwarding and POP/IMAP.
Scroll down to the IMAP Access section and select Enable IMAP.
Click Save Changes at the bottom of the screen.
Gmail blocks less secure apps from accessing Google Apps accounts because these apps are easier to break into.
Blocking less secure apps helps keep your Google account safe.
Then, turn on Access for less secure apps.
Now you should be able to continue to the next section and add your Gmail account to Outlook.
Add Your Gmail Account to Outlook
Close your web client and open Outlook.
To begin adding your Gmail account, go for the File tab.
On the Account Information screen, click Add Account.
The progress of the setup displays.
The automatic process may or may not work.
On the Choose Service screen, select POP or IMAP and click Next.
On the POP and IMAP Account tweaks enter the User, Server, and Logon Information.
On the Internet E-mail configs dialog box, poke the Outgoing Server tab.
While still in the Internet E-mail prefs dialog box, tap the Advanced tab.
Click OK to accept your changes and wrap up the Internet E-mail tweaks dialog box.
Outlook tests the accounts prefs by logging into the incoming mail server and sending a test email message.
When the test is finished, click Close.
You should see a screen saying Youre all set!.
tap the Inbox to see whats in your Inbox in your Gmail account.
This works the other way as well.
Any changes you make to the structure of your account (folders, etc.)
in a net online gate will be reflected the next time you log into your Gmail account in Outlook.