By default, whenever you send an Outlook email you will be prompted to save it in VBM from your Send Items folder.

You can turn this feature on/off by checking/unchecking the 'Prompt Save on Send' on the VBM tab of a new email.


Similarly, whenever you close an Outlook email which has not already been saved into VBM you will be prompted to save it in VBM.

You can turn this feature on/off by checking/unchecking the 'Prompt Save on Close' on the VBM tab of a received email.