1.赋予管理员权限

New-ManagementRoleAssignment -User Administrator -Role "Mailbox Import Export"

2.导出test邮件账户

New-MailboxExportRequest -Mailbox test -FilePath \\mail\pst\test.pst

自己创建个pst共享文档就好

3.检查Get-MailboxExportRequest
 

4.导入

New-MailboxImportRequest -Mailbox test -FilePath \\mail\pst\test.pst

5.检查导入情况

Get-MailboxImportRequest

 

其它参考 http://www.zerohoursleep.com/2010/11/export-and-import-mailboxes-in-exchange-2010-sp1/