How to Change how often Outlook Sends and Receives e-mail (Outlook 2010)
If you view e-mail on a smart phone and you use Outlook, you may find yourself deleting the same e-mails more than once. One option is to set Outlook to send/receive less often. This means when you are out of the office and you delete an e-mail on your smart phone, you won’t have to delete the same e-mail in Outlook as often.