What would be a best practice for an admin to change users email id in o365. We had few users using wrong naming convention. Changing to company s standard naming convention. Without impacting email flow how to change the email id in o365. We don’t have on premise ad server . We use only Microsoft o365.
After change what user suppose to do. Do they need to add an account in local outlook again? How about email flow coming to old email address? Please advise me. Thanks.