Connect and send/receive email messages
By default, email messages are sent automatically when you click Send in a new message window.
Automatic checks for new incoming and outgoing messages occur at several possible times, such as when you start Microsoft Outlook 2010 or at automatic intervals as defined in Send/Receive Groups, and upon manually starting a send/receive command. You can also manually send and receive messages at any time.
All accounts: Send messages in the Outbox and check for new messages
On the Send / Receive tab, in the Send & Receive group, click Send/Receive All Folders.
Keyboard shortcut To send and receive messages for all accounts, press F9.
All accounts: Send all messages in the Outbox
On the Send / Receive tab, in the Send & Receive group, click Send All.
Send messages in the Outbox and check for new messages for only one account
On the Send / Receive tab, in the Send & Receive group, click Send/Receive Groups, point to the account for which you want to send/receive, and then click Inbox.
If you have problems sending or receiving email messages, see Microsoft Answers for Microsoft Office.