when I try to send an email to any distribution list nothing happens at all, the mail does appear into the sent items when I expand that DL, which works fine, the mail is sent and received by all group members what could be causing this not resolving of DL's? I already restarted the netlogon service on all servers I can think off being related to the problem there are 2 win2k3 GC servers in our site thnx