Η Microsoft behaves preparing to add support for Gmail to Outlook.com. The upcoming plugin will allow you to use some functions of Gmail directly from within Outlook.
You'll be able to access your Google Drive files for attachment to emails and view Google Calendar.
Outlook.com is Microsoft's email and calendar service, and uses it for login Microsoft Account. So the service works closely with Windows 10, OneDrive, Microsoft Office and its other products companys who use Microsoft Account.
The new add-on we described above is still in development and is not widely available. Currently only supports one account Gmail.
The key change will be the ability to access the data of your Gmail through the web version of Outlook. Microsoft's desktop applications, such as Calendar and Mail in Windows 10, already support this feature, allowing you to access emails and calendars from Google.
In addition, its incorporation GDrive it will also be a new feature and looks very promising.
It is not yet known when Microsoft will release the new feature.