I am sharing an Office 365 for EDU tenancy with two other schools in our region. We share because our students move from separate, K-8 districts into a shared high school. It is essential that students be able to migrate their mailboxes and files from 8th to 9th grade without losing anything. We DO change their account name in PowerShell when they move between schools - e.g., username@elem.shareddomain.org becomes username@highschool.shareddomain.org . This was all established under Live@EDU.
The issue is that the shared domain name is kind of complex and difficult for younger students to remember.
Now that we are on Office 365 (Wave 15):
1. can we host multiple email domains under the same tenancy? What I would like to do is set up a separate, shorter domain name for our elementary students.
2. if users are renamed as they move from the elementary school email domain to the high school email domain, is it possible to change their identity (e..g, username@elem.org -> username@highsch.org) WITHOUT impacting their data?