All Recipient Update Service tasks

The Recipient Update Service is a sub process that runs under the System Attendant process. It carries several task of updating information on all the domains of a forest. This is a list of all tasks that the Recipient Update Service does, and it is divided into 4 categories.
Recipient Policy:
• Set the proxyAddresses for users based on Recipient Policies. It won’t set if the proxyAddresses were manually added
• Set other mail attributes, like targetAddress, textEncodedORAddress and mail.

Address List:
• Set the showInAddressBook attribute based on the Address Lists present. This attribute will define which objects appear on which Address List. It also need to “Resolve Names” on Outlook or other MAPI Client.

System Policy:
• Sets the homeMDB, homeMTA and/or msExchHomeServerName if at least one is present. It will not change any attribute if is already there.
• Sets the msExchMailboxGuid if not present.
• Sets the legacyExchangeDN if not present.
• Sets the displayName if not present.
• For Groups that have the hideDLMembership attribute equal to TRUE, it will added some Non-Canonical ACEs into the ACL of that group, to prevent people from seeing the membership of that group.

Miscellaneous:
• Sets the ACL on the “cn=Exchange,cn=System,dc=MyDomain” container to reflect administrative privileges given by the Exchange Delegation Wizard.
• Populate the members of the “All Exchange Servers” groups on each domain of the forest.