开启导入导出Exchange邮件
add-pssnapin microsoft*
install-cannedrbacroles
install-cannedrbacroleassignments
New-ManagementRoleAssignment -Role "Mailbox Import Export" -User Administrator
add-pssnapin microsoft*
install-cannedrbacroles
install-cannedrbacroleassignments
New-ManagementRoleAssignment -Role "Mailbox Import Export" -User Administrator