Up untill yesterday, my email was working fine - I have my home and college accounts on the Mail app - that's a Live.com, an IMAP GMail and an Exchange with my college.
Yesterday, the college changed the system to use a username for signin rather than an email.
My username is AB123456 and my email is AB123456@college.ac.uk.
This is fine online, on OWA (mail.college.ac.uk/owa), but Mail doesn't accept a non email address as a username. Can I make mail accept my username? Or alternatively set up outlook in the same way?