Synchronize objects and Free/Busy data between multiple forests . NETsec's GALsync allows you to share Exchange mail-enabled objects of your Active Directory forest with other forests incl. Exchange Online
'Where does User X have access to?' Answering these questions usually takes days for professionals, and even after these days, would you sign that document?
According to company policies ArchiveUsers can log, copy, compress and store user information (Active Directory), home directory and/or Exchange mailbox to another disk and delete the original.
As user-self-service authenticated users in your company may use this website to add their account to a specified group.