When disabling users I typically will be asked to retain a copy of their mailbox. I accomplish this by literally creating their mailbox in Outlook and then exporting to PST. Is there some way around having to do this just to save a mailbox?

Edit:
I've tried New-MailboxExportRequest but I keep getting the following after providing an alias:

Supply values for the following parameters:
FilePath: \\localhost\EXPORT_PST\myuser.pst
Mailbox: myuser

Couldn't find the Enterprise Organization container. <--- the error

I've also tried supplying [email protected] as the mailbox as well.

Edit 2:

I had already seen the post at http://www.mikepfeiffer.net/2010/10/error-couldnt-find-the-enterprise-organization-container-when-creating-a-new-mailbox-export-request/ so I set the permissions as follows below:

NTFS permissions

Sharing permissions

I am still getting that error.

Final Solution

In Exchange SP2, it does not warn you that you have not set role assignments, it just fails. So be sure to create a management role for "Mailbox Import Export" and add your user to the group, then restart PowerShell for this to take effect.