I am looking for someone to help me with decommissioning of Exchange 2010 in Hybrid environment. All mailboxes are already in Office 365, there is also AD on-premise. Task is to decommission Exchange 2010 and make sure on-premise AD still syncs with Office 365. Don't want to install another Exchange server onsite. Only apply if you have completed similar tasks before and have few years of experience working in Hybrid environment. Let me know if any questions.