You can manage emails and SMS notifications by logging into your Ding account on the web www.ding.com/login. 

In the “Settings” tab of your account on the web there is a Contact preferences section with buttons for both email and SMS notifications 

Notes: 

• You can control if you want to get marketing messages when you sign up for a new account using the checkbox “Yes, I’d like to receive discounts, exclusive special offers and other updates from Ding via e-mail or SMS.”
•  Some notifications cannot be turned off such as purchase receipts, one-time passwords for phone login and password reset emails.
•  Clicking the unsubscribe link in Ding marketing emails will remove you from our email mailing list. This is a global setting that overrides any notification preference you may set in your Ding account. If you want to start receiving notifications in the future you can enable them again in your account settings. 
•  Replying “STOP” to a marketing text message will remove you from our SMS notification list. This is a global setting that overrides any notification preference you may set in your Ding Account. If you want to start receiving notifications in the future you can enable them again in your account settings. 

Related article: How to manage your push notification settings