Forum Discussion
Retiring our hybrid Exchange Server
We are almost done migrating all of our Exchange on-premise mailboxes to Office 365 and want to retire the on-prem Exchange Server. In previous posts in the Yammer IT Pro group some said that this s...
You can't edit any Exchange related attributes without on-premises Exchange admin tools. You can see when you try and edit some fields in Office 365 admin portal that you will get an error advising that the objects are synced from on-premises AD, and you will need to edit them on-premises. The only supported method of doing that is using Exchange tools (ie EAC). You can edit these attributes with ADSIEdit, but this is not supported by Microsoft.