Changes made in your third-party account will be reflected in, but changes made directly in won't appear in your third-party account. Syncing is a one-way connection that goes from your third-party account to your account. You can sign in to your mail and calendar with your third-party email address, but to access email from your third-party account, you must set it up as a connected account. When creating an account using a third-party email address, the email address must be a valid address to which you have access. You can create an or Microsoft account with a new email address or use an existing email address from a third-party email account, such as Gmail or Yahoo, but there are certain limitations when using a third-party email address as the primary alias for your Microsoft account. Limitations of creating an account using a third-party email address Read more about the benefits of a Microsoft account. Creating a Microsoft account gives you free access to Microsoft 365 for the web, Skype, OneDrive, Xbox and more, and will also give you an account.
