Step 1: Click on "Go to Outlook Web App for email (menu item)" from MyLearning
Step 2: Click on “COG/Settings button (top right corner)”
Step 3: Select "mobile devices”
Step 4: This section will show you all the devices where you have configured wintec mail-
Select the device you no longer require and click delete button.
Step 5: Confirm and delete the entry
Please see the attached document for the screenshots.