I have created a dynamic distribution group using memberofgroup for a global security group (GSG ), but when I send an email to the dynamic distributiongroup the message is never delivered to the people on the list. Any ideas????? I created a global security group testgrp3 gsg , in the groups OU, that has 3 users, not mail enabled. I then created a dynamic distribution group with the following powershell v2 command: new-dynamic distributiongroup -name testgrp3 -recipientfilter "memberofgroup -eq 'xxxx.local/gr oups/testgrp3 gsg '" -organizationalunit 'ou=distribution groups,dc=xxxxxxx,dc=local ' Using the Exchange management console I can see the group and when I select the preview button under the filter tab, the 3 users in the testgrp3 gsg are displayed. I can look at the dynamic distribution group using powershell: PS C:\powershell> get-dynamic distributiongroup testgrp3 | fl RecipientContainer : xxxx.local/Distribution Groups RecipientFilter : (MemberOfGroup -eq 'CN=testgrp3 GSG ,OU=Groups,DC=xxxx,DC=local' -and -n Name -like 'SystemMailbox{*') -and -not(Name -like'CAS_{*')) LdapRecipientFilter : (&(memberOf=CN=testgrp3 GSG ,OU=Groups,DC=xxxx,DC=local)(!(name=SystemMaox{*))(!(name=CAS_{*))) <!-- <<< --> _____________________________ James Schortinghouse Mercer University IT

Hi, As u said I created a global security group testgrp3 gsg , in the groups OU, that has 3 users, not mail enabled. Did u mean that members of this DDG are not mail enabled (which means that they dont have a mailbox)? If they are not mail enabled then how can they receive emails? Explain it plz so that we can understand ur problem properly. Regards,Laeeq Qazi|Team Lead(Exchange + Sharepoint + BES + DynamicsCRM) www.HostingController.com