If you ever need to configure mobile phones remotely for emails goto…:

http://support.t-mobile.co.uk/help-and-support/index?page=findyourphone&cat=FIND_YOUR_PHONE&brand=null&filter=%3Adescending&brands

…and find your model. This site contains interactive maps that will walk you through the setup step by step. Don’t forget on MS devices you need to configure ActiveSync!! (not mailbox direct)