I Have a user who needs to access her and her managers mailboxes at the same time. I have given full mailbox access from Exchange 2010 (SP1) server and the account got auto-mapped in outlook.
The user has being complaining with regard to the issues such as sending e-mails from the managers mailbox sometimes gets stuck and performance is really slow.
I am running Outlook 2010 (SP1).
Please let me know if there is any known issues with this configuration and whether there is any patch i can apply to fix.