I work for a county government office.  Our email goes through an exchange server.  I have worked to set up the mail client through my Iphone 6S but I only get the "Cannot get mail.  The connection to the server failed." message.  I have set up coworkers phones for them and they work fine.  I even went to our IT director who deleted and reinstalled the account setttings on my phone to no avail. 

I am trying the community as a last ditch effort.