When Outlook is configured with more than one email account, it uses the default email account to send an outgoing message from unless when you are composing a message you change the account. The outgoing account can be changed by selecting a different account from the drop down in the “From:” address. To change the email address that always appears as the default, follow these steps:
- Click Start + Control Panel
- Click Mail
- Click E-mail Accounts…
- In the Account Settings window under E-mail Accounts, click the account you want to set as default
- Click Set as Default
- Click Close
- Close the Mail Setup–Outlook window
- Close Control Panel
- Open Outlook