I would like to reduce the frequency that Outlook 2007 checks for new emails against my exchange account. I have tried to change the Send/Receive Groups, but that does not seem to be working as I have it set to send/receive every 30 minutes and it receives almost instantaneously. I even made sure that the group is set to "Include the selected account in this group".
It appears that this is not possible, at least via this response
Exchange accounts will check mail once per minute. This schedule cannot be changed.