- In Outlook Web App, click Settings icon
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2. Click on View all Outlook settings.
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3. Highlight Email and then Rules.
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4. Under Rule, click on + Add new rule.
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5. In Rules, enter the rule name; under Add a condition, select All messages.
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6. Under Add an action, select Forward to
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7. Enter external email address.
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8. Click OK to save your selections and return to the new rule window.
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9. Click Save to save your rule and return to the Inbox rules tab.
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