We can enable or disable saving a copy of the mail sent in Sent Folder by adjusting the user preferences. By default a mail sent using Lotus Notes will be saved in the Sent Folder, however based on individual requirements we can disable and later enable the facility as required.

Follow the steps below to adjust the settings.

1. Log into your Lotus Notes account and go to File - Preferences - User Preferences
2. Open the Mail view.
3. In the Sending section, Choose Always keep a copy in the drop down menu named Save mail that you send to  have a copy in the Sent Folder always.
4. If you dont want to save a copy, choose Dont keep a copy in the menu. Alternatively you can make Notes prompt whether to save a copy or not everytime a mail is sent by selecting Always prompt.
5. Click OK to save the settings.