Azure AD Connect and domain sync issue
Last week I was getting complaints by users in our Office 365 environment that the address book in Exchange was not up to date. The issues was that users where getting email addresses with the ‘domain’.onmicrosoft.com as the default email address. The users with these onmicrosoft.com mail addresses where users that are in our on-premises Exchange environment.
The situation
At this customer we have a select group of users in Office 365 and all other users are in an on-premises Exchange environment. A few weeks ago I have updated the AADConnect client to the latest version and everything went well with the update and all users where still in sync with Office 365.
