In most cases, messages are sent automatically whenever you click Send, and received at several possible times, including when starting Microsoft Outlook, at automatic intervals, and upon manual Send/Receive requests.
Do any of the following:
Send and receive messages for all accounts
Send and receive messages for a selected account
Send an e-mail from a specific account
If you have set up multiple e-mail accounts in Microsoft Outlook, you can specify which account to use when sending a message. By default, e-mail is sent by using the account specified as the default in the E-Mail Accounts Wizard. For example, your default account may be your work e-mail account, but you can specify to send a message from another e-mail account, such as your personal Internet service provider (ISP) account.
Note Sending messages from your ISP account may require you to be connected to that provider in order to receive permission to use the e-mail server. Contact your network administrator or ISP for more information.