Since the members of the dynamic distribution group will not be expanded to the regular users, I am wondering if I can use dynamic distribution group as attendee for recurring meetings? How will Exchange server handle the ongoing group membership changes when meeting updates occur? Thanks and regards.

Dynamic distribution group A distribution group that uses recipient filters and conditions to derive its membership at the time messages are sent. So when you send the meeting request to dynamic distribution group it will be received by only those recipients which are showing as member at the time meeting request is sent. Meeting request will not up updated automatically unless meeting organizer sends the update. Hope this answers your query. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Hasnain Shaikh| My blogs: http://messagingserversupport.com