This is for work iPads. For personal devices please see: https://itfaq.lsu.co.uk/display/itfaq/Mobile+Email
By default we don't set up your email on a work iPad. However, doing so is really easy.
From your iPad home screen, open the Self Service app. 
The first icon should be Add LSU Email. 
Install this.
This might take a minute.
When its done, open the mail app. 
Here it should prompt for a password, this will be the same password as logging into a PC.
If you haven't already set a passcode, it will prompt you to add one. It won't download your emails until you add one.