How do I manage my stumbleupon email preferences?
If you no longer wish to receive these emails you may opt out of them by clicking the opt-out link in any email you receive from StumbleUpon. Alternatively, you can also opt out by:
1) Logging into your account.
2) Go to your Settings page and click the Notifications tab.
3) Uncheck any of the various email options on the page to tailor what kind of messages you receive from StumbleUpon.
4) Click the Save Settings button.