Many office workers manage both a personal and professional email account. Certain programs, such as Microsoft Outlook, allow you to combine the messages, calendar appointments, email addresses and other data in a single program. Then, you can decide how you use the shared data in both your personal and professional lives. You will need to obtain the Microsoft Outlook program and create a free Yahoo account online. You can choose to synchronize (sync) your entire email account or portions of the data, such as calendar events or email addresses. Find out how to synchronize Outlook Data with Yahoo.