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Email Configuration in Microsoft Dynamics 365 can pose a real problem for CRM users. When you click on the email field in an Account or Contact form within the system, standard Dynamics 365 functionality opens only the default email dialog. When there is no out-of-the-box solution to configure, this becomes a challenge and we've successfully faced it. To activate it we had to perform the following:Open Outlook for the Web in a Chrome tab (you must do this on an Outlook tab) and enter: navigator.registerProtocol Handler(“mailto”,”https://outlook.office.com/mail/deeplink/compose/?mailtouri=%s”)