When enabling new mailboxes for archiving there is an option to allow users to decide when automatic archiving of their mailbox starts as displayed in Figure 1. 

Figure 1


If this selection is chosen the mailbox is enabled in a Suspended state and only Manual archive operations can be completed.  Once the Suspend property has been removed from an enabled mailbox automatic (scheduled) archiving can resume.

1. In the Enterprise Vault Administration Console expand the Policies>Exchange>Mailbox containers.
    
2. Open the Properties of the Mailbox Archiving Policy and go to the Archiving Actions tab.
    
3. Uncheck the Force users to use policy and target settings for mailbox archiving option as displayed in Figure 2.
   
   Figure 2:
   
   
4. Click Apply to save the changes and OK to exit the Properties window.
    
5. Run a synchronization of the Mailbox Archiving Task to complete the change.  See the Related Articles section of this article for more information on synchronization.
    
6. Remove the Suspend property from the mailboxes that have been enabled for archiving using the EVPM script below:
   
   [Directory]
DirectoryComputerName= VaultServerName
SiteName= MySite

[Mailbox]
DistinguishedName= /o=History/ou=First Administrative Group/cn=Recipients/cn=UserA

[Folder]
Name=mailboxroot
Suspended=false
enabled=true
   
   Note: For more information on using EVPM please refer to the Related Articles section of this article.