Pavel N. Kosachev
Hi, after upgrade to Exchange 2010 i observe that mail-enabled security groups nested into another Distribution group are not showing in Address Book. I can see nested Distribution groups and users in Outlook 2007 and OWA. Exchange deliver messages to all recipients of this distribution group - it's correct. I try convert to universal group and update GAL(Update-GlobalAddressList -Identity "Default Global Address List") with no success.