Exchange Shared Mailbox Appointment Duplication

One of our clients' office manager has shared access to her manager's mailbox. She has his mailbox listed under her favorites within Outlook.

When someone sends a calendar appointment request to her manager, it appears in his mailbox but it also appears in her inbox, too. This ONLY applies to appointment requests - not normal mail.

Can anyone explain why this is, and how to go about stopping it from happening?
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zelron22Connect With a Mentor Commented:
What version of Exchange and Outlook?
And regardless of what you think, unless you're sure, you should to check it.  There are only a few ways to make something like this happen.  One is that people could be BCC'ing the assistant.  Another is that invites are getting forwarded.  If you have Exchange 2007 a transport rule could have been set up.

You can also check this thread regarding delegates.

Is there a rule set up to forward meeting invites set up on the manager's mailbox?
edz_pgtAuthor Commented:
Thanks for your suggestion but no, I don't think this customer uses rules like that.
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edz_pgtAuthor Commented:
Thanks for the link. The delegate feature seems to be the cause of the issue. However, it does change the issue just slightly.
Removing her from the delegate list of the manager's mailbox stops these appointments arriving in her inbox but it also prevents her from sending email from the manager's mailbox.
Is there a way of solving this side effect or is that just the way it is?
zelron22Connect With a Mentor Commented:
Here are instructions for "send-as"

Here are instructions for "send on behalf" -- use the second part, the first is using delegates.

If you have Exchange 2007, it's even easier.
edz_pgtAuthor Commented:
Thanks for your help today. :)
There is an option for Delegates to receive manager's meeting requests. Just a checkbox in the delegate setup (in Outlook, Tools/Options/Delegates)
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