Sent items from a Generic Mailbox go into Sent Items from users' Mailbox

it was not possible to find the settings so that emails sent from a generic mailbox are saved into the sent items of the generic mailbox as opposed to being saved into the sent items of the user’s mailbox… Which means that the user will have to drag sent items from her mailbox in to the sent items of the generic mailbox when this was automated before. We simply created a new Outlook MAPI profile and added the user's mailbox and generic mailboxes and finds ourselves with this problem.

Many thanks for your help,

Trevor