1. How can I stop the distribution list from expanding
2. How can I see all contacts on a distribution list 

Thanks

Received Error code 19784 
I have 14 email addresses. Ive already deleted list and recreated
I am using Mac Outlook 2011 with Exchange Server. When I make a change to an individual's contact information, it does not update the distribution list information.  Should I clear the cache? I hadn't realized this wasn't an automatic update. Any suggestions are greatly appreciated.
Thank you.
How do you get Contact Group (Distribution List) names to appear in the list of Contacts?  When I select "Contacts" (in the lower left corner), my Contacts are listed/displayed alphabetically by last names, the Contact Groups appear in their proper place but have blank names.  From what I can see there is no way to enter a "last name" and there is no column option to display "Contact Group"??
Original Title: "2 questions about Outlook for Mac, version 14.2.4."

Hi, can anyone tell me what is the maximum number of addressees I can place in an email, as Cci?
Also, when I want to sent an email to my distribution list (I put up to 20 addressees by email), nothing can be sent if there it, at list, one email address that is not correct: how can I remedy to that? In the Outlook version used on a PC, that was never an issue (emails were all sent and, some, returned with an error message).
I use the Outlook for Mac version 14.2.4.
Thank you for your support, highly appreciated.
Guillaume (France)
Reference:  http://community.office365.com/en-us/forums/160/p/71382/266109.aspx#266109

Using Office365, one of my users has mac outlook 2011, windows outlook 2010, and obviously OWA.

She has a distribution group where she's the only member, and she has SendAs privilege (I assigned via powershell). In outlook 2010 and OWA, she specifies the From, selects the distribution list from GAL, and sends. From that point onward, it always appears in the From drop-down.

On Mac Outlook 2011, the From drop-down only lets her specify another account on her computer; doesn't seem to know about any SendAs permission, doesn't seem to give her the ability to SendAs another email address from the GAL.

Is there something we're missing? Or is it just not supported?

We tried waiting a few days, deleting and recreating the account from Mac Outlook 2011, waiting a few more days... Still nothing.