i can't send an email using a macro in acesss?

i have a macro in an MS access 2003 database that needs to run a report and send the report by mail .i'm using the sendobject command in the macro , when i run the report i get the message "Microsoft Acess can't open the mail session,check your mail application and see it is working properly". i have MS exchange running on the server,the macro is being run from the server as well ,need help urgently!!! i alreadt have the outlook client running on the machine, what r the configurations needed to be made