Open Internet Accounts preferences for me
Click an account provider.
If you don’t yet have an account from a particular provider, such as Yahoo, create one on the provider’s website, then add it here.
If you want to add an account from a provider that isn’t listed, such as a mail or calendar account for your company or school, click Add Other Account on the right, click the type of account you want to add, then enter the requested account settings. If you don’t know the type of account or the account settings, ask the account provider.
Enter your account name, password, and other requested information, then click Set Up.
If the account you added has a list of features on the right, select the ones you want to use.
On your Mac, choose Apple menu Share documents, files, and more from Mac apps