Head over to your settings area by clicking on your name in the upper right-hand corner of the screen and choose Settings. From there select Connected Accounts in the left menu, then choose a platform.
Outlook: If you are an Outlook or Apple Mail user that means you are connecting to an outside mail server that actually hosts your email. It could be an Exchange server if you’re part of a large organization, or it could be Office 365 which is typical for users who have installed Microsoft products (i.e. Word, Excel, Powerpoint, etc.) on their Mac or PC. You could also have Gmail (Google Apps) as your email provider like everyone here at Refer.com.
So how do you know which one you have? There are so many options depending on what version of Outlook/Apple Mail (or other email manager) you’re running that the easiest way to find out is to ask your IT department or email firstname.lastname@example.org and we can help you.
Exchange: If you know you’re running Exchange, here is a quick tutorial on how to connect.
Office 365: If you’re running Office 365, just enter your email address and password.
*Exchange & Office 365: Option only available for Enterprise accounts