You can connect to Microsoft Office 365 using Windows Live Mail 2011 or Windows Live Mail 2012. Windows Live Mail 2011 or Windows Live Mail 2012 provide both POP3 and IMAP4 capability. However, you won't get all the functionality available with full featured E-mail clients, such as Microsoft Outlook.
Help with Windows Live Mail 2011 and Windows Live Mail 2012 is available at the ITS Help Desk and the Open Access Labs.
Please note, all of the links below point to instructions on Microsoft's web site. As updates are made to Office 365, these instructions will also be modified to show the most up to date information.
If you have problems connecting with Windows Live Mail 2011 or Windows Live Mail 2012, additional information is available at: What else do I need to know?