AD Attributes Changed When an On-Premises User Mailbox is Moved to EXO

The following is a list of attributes I tracked that change for an AD user when their associated mailbox is moved (via hybrid) to Exchange Online… homeMDB legacyExchangeDN mDBUseDefaults mS-DS-ConsistencyGuid msDS-ExternalDirectoryObjectId msExchCalendarLoggingQuota msExchELCMailboxFlags msExchHomeServerName msExchMailboxSecurityDescriptor msExchRBACPolicyLink msExchRecipientDisplayType msExchRecipientTypeDetails msExchRemoteRecipientType msExchUserCulture proxyAddresses targetAddress uSNChanged Reference(s)… https://blogs.technet.microsoft.com/dkegg/2014/08/27/ad-attributes-that-are-changed-when-a-mailbox-moves-to-office-365/ https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-attributes-synchronized Report Comment

Add Contacts to Office 365 in Bulk with PowerShell

I had a project recently where we were migrating from hosted Exchange to Office 365. We implemented AAD Connect to sync Active Directory (AD) user objects for the user mailboxes that where being migrated. However, we manually created shared and resource mailboxes, groups, and contacts in O365 as those were not going to be created in AD for synchronization.…