Hi, I have several hundred users already entered into AD. Each user has an office assigned to them already (Ie, NY, LA, CH) in the office field under the 'organization' tab in EMC. I need to create Dynamic distro email groups for users in each specific office. So, when looking in the GAL, a user can find "Chicago", for example and select that to email everyone in the Chicago office. I have tried this but it's not working: New-DynamicDistributionGroup -Name "NY" -Filter {Office -eq 'New York'} All of my users are in one OU in AD, so I can't create the lists based on OU. Is there a way to create the list based on using the 'office' field? Thanks! Mike

Try New-DynamicDistributionGroup -Name NY -RecipientFilter { (office -eq 'New York') }

Ah-ha! Thanks. That worked. Mike

One other question -- is there a way to stop users from outside of the organization from sending to this list? I thought I remember reading somewhere that there was, but I can't find it right now. Thanks again.

In the dl properties, on the message ddelivery restrictions tab, check "require that all senders are authenticated"

Right. That was it. Thanks again. Mike