Forum Discussion
How do I change an office 365 email address and avoid data loss/re-syncing in outlook app/desktop
Let's say we have a registered user account who's current email address is mailto:user@mydomain.com. There is an alias on the account called mailto:events@mydomain.commailto:user@mydomain.com. Now, t...
Are those both added as proxy addresses on the *same* mailbox? If so, all you need to do is change the primary SMTP address, nothing will change client side. If you decide to also change the UserPrincipalName, this will change the way the user logs in, so make sure to inform him accordingly. But no data will need to be resynced.
Currently user@whatever.com is the main mailbox (and user account). events@whatever.com is the alias. I want to reverse that scenario.