You can cancel Sanebox from two locations:

Inside Webmail under Settings

In the One.com control panel under Mail administration

Cancel Sanebox inside Webmail

1. Login to Webmail and go to Settings.
2. Click Sanebox in the menu to the left.
3. Click on "Do you want to cancel your subscription?"
4. Click Cancel subscription to confirm.

An email will be sent to the owner of the webhosting subscription with a confirmation that Sanebox has been cancelled for this account.

Cancel Sanebox from the One.com control panel

You can manage Sanebox for all email accounts on your domain from the One.com control panel under Mail Administration.

1. Login to the One.com control panel and click Mail Administration.
2. Under Accounts, click Sanebox.
3. Cancel Sanebox by moving the toggle under Status to the left.
4. Click Cancel subscription to confirm.

Related articles:

What is Sanebox?

How do I log in to Webmail?