If the issue still persists, Microsoft has a dedicated support team for Outlook for Mac.

To avoid data missing, please back up your data in advance. Secondly, I suggest you try removing the account and re-adding it again and let the Outlook for Mac to re-sync your account content to see the result. Steps to Import Contacts from Outlook for Mac to Gmail for free Step 1. Follow the below instructions to transfer Outlook for Mac Contacts to Gmail account. Just open up Gmail, click the gear in the top right to open settings, goto Labels and ensure the Show in IMAP checkbox is ticked next to any labels you wish to see as folders in Apple. Click on Add account to proceed and then exit Outlook. AFAICT Apple mail does not support tags/labels natively like other email clients, however Gmail allows you to display your labels as folders in Apple Mail. After that, you need to provide the login credentials of your Gmail account with Outlook for Mac. The next step is to select the Email option. Open Outlook on Mac and select the Accounts option from the menu. However, there is a free way to transfer Mac Outlook contacts into Gmail account. Configuration of your Gmail account in Outlook for Mac. The outlook is a desktop-based email client whereas Gmail is a free email service provider. You can add as many accounts as you want.

Follow these steps to add your email account to Outlook for Mac. Gmail, Yahoo, iCloud,, and AOL accounts all use two-factor authentication to help verify that you’re the person trying to access your email account. If Outlook won’t accept your password and you know you’re using the password for your email account, you might have an email account that requires additional security. Click Forwarding and POP/IMAP Select Enable IMAP. Click the gear icon in the upper-right and select Gmail settings at the top of any Gmail page. To set up your Outlook client to work with Gmail: Enable IMAP in Gmail Sign in to Gmail.

Microsoft Outlook for Mac Add Your Gmail Account to Outlook 2011 Mac Using IMAP.

Gmail labels and outlook for mac