Hello, I have a moderator who is claiming that he is not receiving e-mails sent to the Distribution Group for him to approve. Could this issue regard the expansion server and can I change the expansion server to test ?

Hi Yes, true that for troubleshooting Here a some links for using moderated distribution groups if you haven't read them http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_3221-Configure-Moderated-Distribution-Group-in-Exchange-2010.html http://technet.microsoft.com/en-us/library/bb125178.aspxJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | Blog: http://www.testlabs.se/blog | Follow me on twitter: jonand82