Our managing directors personal assistant is currently experiencing a number of issues with the behavior of mailboxes that she has full access permission on.
We use Microsoft Exchange 2013 with CU7.
E-Mail Client: Outlook 2010
OS: Windows 7 Professional
She logs on to the laptop with her own domain account, when she opens outlook she only has one mailbox associated with the profile. Two more mailbox's she has full access permissions on so that she can send e-mail on behalf of these users. However when she selects either of those e-mail addresses in the from dropdown it sends from her own outbox and saves in her sent items.
I am led to believe that this is an issue with outlook 2010 as when this is tested with outlook 2013, on another account with the same permissions on the managers mailbox it seems to behave as intended.
I have made the recommended registry change
This seems to be a problem for multiple people but I unfortunately can't find a fix. If there is any other information which is required then please let me know.