Understanding the Azure AD Sync Preview

Directory Sync isn't everybody's cup of tea, but if you are working with Office 365, it's quite important. Before I explain what's new about Azure AD Sync – let's take a moment to quickly recap on what Directory Sync does, what your current options are and why Azure AD Sync is especially interesting.   If…

DiscoverySearchMailbox in an Exchange 2007/Office 365 Hybrid environment causes DirSync errors

Whilst working on an Office 365-Exchange 2007 hybrid environment, you may experience errors similar to those shown below from the Directory Synchronization Error Report email and in Forefront Identity Manager: Identity Error Description DiscoverySearchMailbox {D919BA05-46A6-415f-80AD-7E09334BB852}@exchangelabs.co.uk Unable to update this object in Microsoft Online Services, because the attribute Username is not valid. Update the value in…