Troubleshooting the Recipient Update Service (RUS) using Event Logs - Part 4 (last part)http://blogs.technet.com/exchange/archive/2004/07/27/198662.aspx(This is a part 4 of the series. Please go here for part 1 , here for part 2 and here for part 3 .) Proxy generation On Exchange 2003, with proxy generation logging turned up you will see an event 3006: Event Type: Information Event Source: MSExchangeSAen-USCommunityServer 2.1 SP1 (Build: 61025.2)