If you need to remove RPostONE from Outlook, please follow these steps:
1. In Outlook, click on the File menu.
2. Select Options from the bottom of the side bar menu.
3. Select Add-Ins from the bottom of the left side bar menu.
4. At the Manage window, make sure COM Add-Ins is selected and hit the Go button.
5. Select RMail Send Registered from the list to highlight it and then click on the Remove button.