To run a macro in Outlook, the Developer tab must be visible on the ribbon. See Show the Developer tab.
With the Developer tab visible:
On the Developer tab, in the Code group, click Macros.
In the Macro dialog box, under Macro name, select the macro that you want, and then click Run.
Here are details about the other options in this dialog box.
Specifies the name of the macro or add-on to step into, edit, create, delete, or run.
Lists all macros available. You can change what appears here by selecting another macro in the Macros in box.
Runs the selected macro.
Cancels all unsaved changes and closes the dialog box.
Begins running the selected macro in the Visual Basic Editor and allows you to step through its execution.
Opens the selected macro in the Visual Basic Editor so you can edit its code.
Creates a macro with the given name and opens it in the Visual Basic Editor.
Deletes the selected macro.
For information about the security risks of macros and enabling or disabling macros in documents in the Trust Center, see Enable or disable macros in Office documents.
If you want to create or edit a macro, you must use Visual Basic for Applications (VBA).