Hi oliretezan,

So to do this I would do the following:

1) Create a new Mailbox Archiving Policy (Leavers Mailbox Policy) *Note 1

• Set the Delete Shortcut to 0 Days
• Set the Delete Orphaned Shortcuts

2) Create a Provisioning Group for the users (Leavers Provisioning Group) *Note 2

• Set the Provisioning Group to use the Leavers Mailbox Policy
• Move the Provisioning Group to the Top
• Add all the users to the Leavers Provisioning Group

2) Use EVPM to Disable the Archives *Note 3

• Don't ZAP the mailbox, as your users still want to have access to there archived data via search
  
   

3) Export the archives to PST
 

• Use the Enterprise Vault Admin Console to export all Users Archives to PSTs

5) Use EVPM to ZAP the mailbox *Note 4
 

• Now ZAP the mailbox to delete any traces of Enterprise Vault

Notes:

 *Note 1
Mailbox Archiving Policy to delete all shortcuts

 *Note 2
Provisioning Group for the Leavers

 
 *Note 3
EVPM script to Disable a mailbox
 

[Directory]
DirectoryComputername = VirtualBox.domain.local
SiteName = VirtualBox

[Mailbox]
DistinguishedName = /o=demo/ou=AG1/cn=Recipients/cn=tatkins

[Folder]
Name = Mailboxroot
Enabled = False

 *Note 4
EVPM script to ZAP a mailbox
 

[Directory]
DirectoryComputername = VirtualBox.domain.local
SiteName = VirtualBox

[Mailbox]
DistinguishedName = /o=demo/ou=AG1/cn=Recipients/cn=tatkins

[Folder]
Name = Mailboxroot
Zap = True