I am a UK user with TALKTALK using HTC Desire X Android Version 4.1.1 HTC Sense version 4+

New phone received Wednesday 31st July. Installed apps including Outlook.com from google site. Set up okay  Able to receive send synchronise contacts when on wifi (which is perfect) and emails received instantly but get nothing at all when using mobile data only.  It will say the last time it connected to my Hotmail account but refuses to sync even when I press the refresh button manually.  I tried to open a very long message and pressed the link (read full 16.00B) and got connection error.

gmail works with no problems at all sending and receiving email using mobile data, I can also search the web and download apps using mobile data.

I reset to factory settings and reinstalled only outlook.com from the google site just in case other apps were interfering but still have the same problems. 

I would appreciate any help please.

Linda