missing emails 2

hi I got a response but it wasn't responsive to my issues. my account,with thousands of missing emails going back years from the inbox, has never been inactive. how can I get all of the emails back? when hotmail went to outlook this mess happened. I know so many others have the same problem. the answer can't be go to the deleted file and click recover because I have done that and about 50 of them show pull,that is it , and my inbox only has emails from this year. help!!!!! I can't trust this email to keep emails. what is going on? it is on my mac desktop and also on my iapd and iPhone, is there a setting there that could or should be changed to get all these old emails back? the switchover from hotmail to outlook came without warning that this would happen!!!! please help.  carol