I am currently using outlook 2003 for my email and have for many years. It all works satisfactorily and over the years I have added many mail folders and sub-folders with rules for directing the mail into appropriate folders. I have been thinking of upgrading to Office 365 including Outlook and am wondering if all my carefully constructed folders and rules will carry over to the new version. This may have been answered elsewhere. Also, Outlook is the only old Office one I am using. I updated to an Office 2010 a while back but that did not include Outlook. If I upgrade to 365 I will get a version that includes everything. I am using Windows 10 with all the current updates.